Evaluation of Collections on Nursing
Education and Research
Andrea Goldstein
Info 667
2/16/2011
Table of Contents
Introduction…………………………..……………………………………………………………2
Brief Test Summary
Raw Scores………………………………………………………………………………...2
Brief Test Results………………………………………………………………………….2
Brief Test Detailed Results
Level 1 – Minimal…………………………………………………………………………3
Level 2 – Basic…………………………………………………………………………….4
Level 3 – Instructional…………………………………………………………………….5
Level 4 – Research………………………………………………………………………...6
Brief Test Titles and Counts………………………………………………………………………7
Coverage Power Test Summary………………………………………………………………….10
Coverage Power Test Details…………………………………………………………………….11
Comparison of Brief Test and Coverage Power Test……………………………………………12
WorldCat Collection Analysis
Related Authors………………………………………………………………………….12
Related Subjects………………………………………………………………………….13
Languages………………………………………………………………………………..13
Publish or Perish Journal Impact Analysis………………………………………………………14
Audience Levels Analysis……………………………………………………………………….14
Web of Science Journal Analysis
Top Authors……………………………………………………………………………..15
Top Institutions………………………………………………………………………….15
Top Titles………………………………………………………………………………..16
Literature by Publication Year…………………………………………………………..16
~1~
Introduction
This project analyzes the literature in the field of nursing. Specifically, it looks at materials on
the subject of Nursing – Education and Research, corresponding to the Library of Congress
classes RT71-RT81.5.
To find materials within this class range in WorldCat, the following search strategy was used:
lc: RT71 OR lc: RT72 OR lc: RT73 OR lc: RT73.5 OR lc: RT73.7 OR lc: RT74 OR lc: RT74.5
OR lc: RT74.7 OR lc: RT75 OR lc: RT76 OR lc: RT77 OR lc: RT78 OR lc: RT79 OR lc: RT80
OR lc: RT81 OR lc: RT81.5 and cg: 07 and ((dt= “bks”) or (dt= “ser”))
Results were limited to materials held at 50 or more libraries. Materials were also limited to
books and serial publications. This search returned 1,354 records.
The collections of five libraries were analyzed with respect to their materials on nursing
education and research. The libraries are all affiliated with universities with nursing schools in
Philadelphia and Baltimore. Three of these schools (University of Pennsylvania, Johns Hopkins,
and the University of Maryland, Baltimore) have nationally ranked nursing research programs,
while the remaining two (Drexel University and Jefferson University) are less well-known. The
OCLC symbols for these schools are: University of Pennsylvania (PAU), Johns Hopkins (JHW),
University of Maryland, Baltimore (MDU), Drexel University (HHN), and Jefferson University
(TVJ). Some of these symbols are different than those for the main libraries (notably Johns
Hopkins and Drexel), as the medical collections are considered separate from the rest of the
schools’ holdings.
Brief Test Summary
Level
1
2
3
4
School
Penn
Johns Hopkins
UMB
Drexel
Jefferson
Raw Scores for Brief Test
Percent Covered
# Titles PAU
JHW MDU
HHN
10
100
80
100
80
10
90
90
90
60
10
80
50
70
40
10
40
60
40
10
TVJ
80
80
40
40
Brief Test Results
RLG Scale
WLN Scale
3 – Instructional
3c – Advanced Instructional Support
4 – Research
4 – Research
3 – Instructional
3c – Advanced Instructional Support
2 – Basic
3a – Basic Instructional Support
2 – Basic
3a – Basic Instructional Support
~2~
Brief Test Detailed Results
In each of the following tables, an “x” indicates the library holds the item listed, while “no”
indicates the library does not own the title.
Note: Because only 6 items in WorldCat were held at 750 or more libraries (necessary for level
1), the first 10 items in the search were used for level 1, despite having lower counts.
Level 1 – Minimal
Penn
x
x
Johns
Hopkins
x
x
University of
Maryland Baltimore
x
x
Drexel
x
x
Jefferson
x
x
x
x
x
x
x
x
x
x
x
x
Just a nurse : from clinic to hospital ward,
battleground to cancer unit: the hearts and
minds of nurses today/ Kraegel &
Kachoyeanos (1989)
x
x
x
no
no
Expertise in nursing practice : caring,
clinical judgment, and ethics/ Benner;
Tanner & Chesla (1996)
x
x
x
x
no
Dictionary of nursing theory and research
/ Powers (2006)
x
no
x
x
x
Encyclopedia of nursing research /
Fitzpatrick & Kazer (2006)
x
no
x
x
x
Hospitals, paternalism, and the role of the
nurse / Ashley (1976)
x
x
x
no
x
x
x
x
x
x
Nurse educator. [Journal]
Research in nursing & health. [Journal]
Western journal of nursing research.
[Journal]
Annual review of nursing research.
[Journal]
Essentials of nursing research : methods,
appraisal, and utilization; Polit & Beck
(2006)
Percent held
100%
~3~
80%
100%
80%
80%
Level 2 - Basic
Penn
Johns
Hopkins
University of
Maryland Baltimore
Evidence-based teaching : current
research in nursing education / Stevens &
Cassidy (1999)
x
x
x
x
x
Nursing research : generating and
assessing evidence for nursing practice /
Polit & Beck (2008)
x
x
x
x
x
Toward a caring curriculum : a new
pedagogy for nursing / Bevis & Warson
(1989)
x
x
x
no
x
Basic steps in planning nursing research :
from question to proposal / Wood, Kerr,
& Brink (2006)
x
x
x
x
no
Notter's essentials of nursing research /
Hott, Budin, & Notter (1999)
x
x
x
x
x
Handbook of clinical nursing research /
Hinshaw & Feetham (1999)
x
x
x
no
x
Basic steps in planning nursing research :
from question to proposal/ Brink & Wood
(1994)
x
x
x
x
x
Nursing research : a qualitative
perspective / Munhall & Boyd (1993)
x
x
x
x
x
Completing a qualitative project : details
and dialogue / Morse (1997)
no
no
no
no
x
x
x
x
no
no
Ethnography in nursing research / Roper
& Shapira (2000)
Percent held
90%
~4~
90%
90%
Drexel
Jefferson
60%
80%
Level 3 – Instructional
Penn
Johns
Hopkins
University of
Maryland Baltimore
From student to nurse : a longitudinal
study of socialization / Simpson & Back
(1979)
x
x
no
no
no
Speaking of nursing-- : narratives of
practice, research, policy, and the
profession / Diers (2004)
x
no
no
no
no
On doctoral education in nursing : the
voice of the student / Carpenter &
Hudacek (1996)
x
x
x
x
x
Collaboration for articulation : RN to
BSN / Rapson (1987)
x
x
x
no
no
Research methods for undergraduate
students in nursing / Seaman & Verhonick
(1982)
x
x
x
no
x
Educational competencies for graduates of
associate degree nursing programs /
Coxwell & Gillerman (2000)
x
x
x
no
x
Narrative research in nursing / Holloway
& Freshwater (2007)
no
no
no
no
no
x
no
x
x
no
no
no
x
x
no
x
no
x
x
x
Design and analysis of clinical nursing
research studies / Martin & Thompson
(2000)
The doctor of nursing practice and clinical
nurse leader : essentials of program
development and implementation for
clinical practice / Fitzpatrick & Kazer
(2009)
Managed care curriculum for
baccalaureate nursing programs / Hart
(1995)
Percent held
80%
~5~
50%
70%
Drexel
Jefferson
40%
40%
Level 4 – Research
Penn
Johns
Hopkins
University of
Maryland Baltimore
no
x
no
no
x
x
x
x
no
x
no
x
no
no
no
no
no
no
no
no
no
no
x
x
x
Ogier's reading research : how to make
research more approachable. / Lanoe &
Ogier (2002)
x
x
no
no
no
Challenges and new directions in nursing
education / Oermann & Heinrich (2007)
no
x
no
no
no
Curriculum planning in nursing education
: practical applications / Pendleton &
Myles (1991)
no
no
no
no
no
x
no
x
no
x
x
x
x
no
no
A Guide for teachers of nurses / Raybould
(1975)
Analyzing the cost of baccalaureate
nursing education / Brown & Lyons
(1982)
Reading research : a user-friendly guide
for nurses and other health professionals /
Davies & Logan (2003)
Foundation studies for nursing using
enquiry-based learning / Grandis (2003)
Mosby's family practice sourcebook :
evidence-based emphasis / Marshall
(2001)
Statement on graduate education in
nursing (1978)
Nursing education facilities :
programming considerations and
architectural guide (1964)
Percent held
40%
~6~
60%
40%
Drexel
Jefferson
10%
40%
Brief Test Titles and OCLC Counts
Minimal Level 1
#
Count Title
1
Nurse educator. Publication: [Philadelphia, Pa., etc.,
1363 Lippincott, etc.] 1976 -
2
Research in nursing & health. Publication: Hoboken, N.J.,
980 Wiley Subscription Services. 1978-
3
Western journal of nursing research. Publication:
912 [Newbury Park, CA, etc.] Sage Publications. 1979-
4
Annual review of nursing research. Publication: New York
910 : Springer Pub. Co., 1983-
5
6
Just a nurse : from clinic to hospital ward, battleground to
cancer unit : the hearts and minds of nurses today / Author:
Kraegel, Janet M.; Kachoyeanos, Mary.Publication:
878 New York : Dutton, 1989
Expertise in nursing practice : caring, clinical judgment,
and ethics/ Author: Benner, Patricia E.; Tanner, Christine
A.,; Chesla, Catherine A.Publication: New York, NY :
758 Springer Pub. Co., 1996
7
Dictionary of nursing theory and research / Author:
Powers, Bethel Ann, 1943-; Knapp, Thomas R.,
749 Publication: New York, NY : Springer Pub. Co., 2006
8
Encyclopedia of nursing research / Author: Fitzpatrick,
Joyce J.,; Kazer, Meredith Wallace, Publication: New York
742 : Springer Pub., 2006
9
Hospitals, paternalism, and the role of the nurse / Author:
Ashley, Jo Ann, 1939-Publication: New York : Teachers
703 College Press, 1976
10
Essentials of nursing research : methods, appraisal, and
utilization / Author: Polit, Denise F.; Beck, Cheryl Tatano.
Publication: Philadelphia : Lippincott Williams & Wilkins,
703 2006
Basic Level 2
11
Evidence-based teaching : current research in nursing
education / Author: Stevens, Kathleen R.; Cassidy,
Virginia R.Publication: Sudbury, Mass. : Jones and
640 Bartlett, 1999
~7~
12
13
14
Nursing research : generating and assessing evidence for
nursing practice / Author: Polit, Denise F.; Beck, Cheryl
Tatano. Publication: Philadelphia : Wolters Kluwer
623 Health/lippincott Williams & Wilkins, 2008
Toward a caring curriculum : a new pedagogy for nursing /
Author: Bevis, Em Olivia.; Watson, Jean,Publication: New
607 York, N.Y. : National League for Nursing, 1989
Basic steps in planning nursing research : from question to
proposal / Author: Wood, Marilynn J.; Kerr, Janet C.,;
Brink, Pamela J.Publication: Sudbury, Mass. : Jones and
570 Bartlett Publishers, 2006
15
Notter's essentials of nursing research / Author: Hott,
Jacqueline Rose.; Budin, Wendy C.; Notter, Lucille
538 E.Publication: New York, N.Y. : Springer, 1999
16
Handbook of clinical nursing research / Author: Hinshaw,
Ada Sue.; Feetham, Suzanne. Publication: Thousand Oaks,
504 Calif. : Sage Publications, 1999
17
Basic steps in planning nursing research : from question to
proposal / Author: Brink, Pamela J.; Wood, Marilynn
475 J.Publication: Boston : Jones and Bartlett Publishers, 1994
18
Nursing research : a qualitative perspective / Author:
Munhall, Patricia L.; Boyd, Carolyn Oiler.Publication:
451 New York : National League for Nursing Press, 1993
19
Completing a qualitative project : details and dialogue /
Author: Morse, Janice M. Publication: Thousand Oaks,
436 Calif. : Sage Publications, 1997
20
Ethnography in nursing research / Author: Roper, Janice
M.; Shapira, Jill. Publication: Thousand Oaks, Calif. : Sage
408 Publications, 2000
Instructional Level 3
21
22
From student to nurse : a longitudinal study of socialization
/ Author: Simpson, Ida Harper.; Back, Kurt W.
Publication: Cambridge [Eng.] ; New York : Cambridge
379 University Press, 1979
Speaking of nursing-- : narratives of practice, research,
policy, and the profession/ Author: Diers, Donna.
Publication: Sudbury, Mass. : Jones and Bartlett
354 Publishers, 2004
~8~
23
On doctoral education in nursing : the voice of the student /
Author: Carpenter, Dona Rinaldi. ; Hudacek, Sharon.
336 Publication: New York : NLN Press, 1996
24
Collaboration for articulation : RN to BSN / Author:
Rapson, Mary Fry. Publication: New York : National
302 League for Nursing, 1987
25
Research methods for undergraduate students in nursing /
Author: Seaman, Catherine H. C.; Verhonick, Phyllis J.
282 Publication: New York : Appleton-Century-Crofts, 1982
26
Educational competencies for graduates of associate degree
nursing programs / Author: Coxwell, G.; Gillerman, H.
Corp Author: National League for Nursing., Council of
Associate Degree Nursing., Competencies Task Force.
264 Publication: Sudbury, Mass. : Jones and Bartlett, 2000
27
Narrative research in nursing / Author: Holloway, Immy.;
Freshwater, Dawn. Publication: Oxford, UK ; Malden, MA
237 : Blackwell Pub., 2007
28
Design and analysis of clinical nursing research studies /
Author: Martin, Colin R., 1964-; Thompson, David R.,
206 Publication: London ; New York : Routledge, 2000
29
The doctor of nursing practice and clinical nurse leader :
essentials of program development and implementation for
clinical practice / Author: Fitzpatrick, Joyce J.; Kazer,
185 Meredith Wallace, Publication: New York : Springer, 2009
30
Managed care curriculum for baccalaureate nursing
programs / Author: Hart, Sylvia. Publication: Washington,
152 DC : American Nurses Foundation, 1995
Research Level 4
31
A Guide for teachers of nurses / Author: Raybould,
140 Elizabeth. Publication: Oxford : Blackwell Scientific, 1975
32
Analyzing the cost of baccalaureate nursing education /
Author: Brown, Elsa L.; Lyons, John M. Publication: New
133 York, N.Y. : National League for Nursing, 1982
33
Reading research : a user-friendly guide for nurses and
other health professionals / Author: Davies, Barbara;
123 Logan, Jo. Publication: Toronto : Mosby, 2003
Foundation studies for nursing using enquiry-based
learning / Author: Grandis, Sue. Publication: Houndmills,
Basingstroke, Hampshire; New York, N.Y. : Palgrave
110 Macmillan, 2003
34
~9~
35
Mosby's family practice sourcebook : evidence-based
emphasis / Author: Marshall, Kenneth G. Publication: St.
100 Louis, MO : Mosby, Inc., 2001
36
Ogier's reading research : how to make research more
approachable. Author: Lanoë, Nicky.; Ogier, Margaret E.
92 Publication: London : Baillière Tindall, 2002
37
Challenges and new directions in nursing education /
Author: Oermann, Marilyn H.; Heinrich, Kathleen T.
81 Publication: New York : Springer, 2007
38
Curriculum planning in nursing education : practical
applications / Author: Pendleton, Stella; Myles, Alan.
72 Publication: London ; New York : E. Arnold, 1991
39
Statement on graduate education in nursing / Publication:
62 Kansas City, Mo. : The Association, 1978
40
Nursing education facilities : programming considerations
and architectural guide / Corp Author: Joint Committee on
Educational Facilities for Nursing of the National League
for Nursing and the Public Health Service.Publication:
Washington, D.C. : U.S. Dept. of Health, Education, and
Welfare, Public Health Service : For sale by the Supt. of
51 Docs., U.S. G.P.O., 1964
Coverage Power Test Summary
School
Penn
Johns Hopkins
University of Maryland – Baltimore
Drexel
Jefferson
RLG level
4 – Research
3 – Instructional
4 – Research
2 – Basic
3 – Instructional
~ 10 ~
WLN level
4 – Research
3a – Basic Instructional Support
4 – Research
2a – Introductory
3b – Intermediate Instructional Support
Coverage Power Test Details
cg
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Ranges
2500
or
more
2000
to
2499
15001999
10001499
900999
800899
700799
600699
500599
400499
300399
200299
150199
100149
75-99
50-74
25-49
WLN
RLG
Lit
PAU
PAU
%
JHW
JHW
%
MDU
MDU
%
HHN
HHN
%
TVJ
TVJ
%
1a
Min.
0
0
0%
0
0%
0
0%
0
0%
0
0%
1a
1
0
0
0%
0
0%
0
0%
0
0%
0
0%
1a
1
0
0
0%
0
0%
0
0%
0
0%
0
0%
1a
1
1
1
100%
1
100%
1
100%
1
100%
1
100%
1b
1
3
3
100%
3
100%
3
100%
3
100%
3
100%
1b
1
1
1
100%
1
100%
1
100%
0
0%
0
0%
2a
Bas.
5
5
100%
3
60%
5
100%
3
60%
1
20%
2a
2
10
10
100%
8
80%
8
80%
5
50%
9
90%
2b
2
30
25
83%
21
70%
27
90%
12
40%
21
70%
2b
2
70
60
86%
48
69%
61
87%
29
41%
42
60%
3a
Instr.
161
115
71%
88
55%
134
83%
31
19%
94
58%
3b
3
208
137
66%
85
41%
141
68%
26
13%
105
50%
3c
3
156
93
60%
50
32%
90
58%
18
12%
55
35%
4
4
4
4
Res.
4
4
4
261
193
252
505
133
84
76
95
51%
44%
30%
19%
64
36
46
49
25%
19%
18%
10%
144
70
82
79
55%
36%
33%
16%
14
12
9
22
5%
6%
4%
4%
98
53
28
27
38%
27%
11%
5%
~ 11 ~
Comparison of Brief Test and Coverage Power Test
School
Penn
Johns Hopkins
UMB
Drexel
Jefferson
Brief Test
RLG Level
3
4
3
2
2
WLN Level
3c
4
3c
3a
3a
Coverage Power Test
RLG Level WLN Level
4
4
3
3a
4
4
2
2a
3
3b
Interestingly, the levels attained by each library changed depending on whether a brief test or a
coverage power test was being administered. The University of Pennsylvania, the University of
Maryland, Baltimore, and Jefferson University all scored higher on the coverage power test.
Johns Hopkins, however, went from a research level collection to an instructional collection.
Drexel University’s collection remained more or less the same regardless of the test used.
Because the coverage power test looks at the library’s entire collection instead of only 40 items,
it is likely that the levels for the coverage power test are a more accurate measure of each
library’s collection than is the brief test.
WorldCat Collection Analysis
Top LC Subject Headings for RT71-81.5
Nursing
Soins infirmiers
Nursing research
Education, Nursing
Verpleegkunde
Onderzoek
Evidence-based medicine
Krankenplege
Onderzoeksmethoden
Nurses
Research design
Nursing schools
Education, Nursing, Continuing
Wetenschappelijke technieken
Staff development
Soins medicaux
Evidence-based nursing
Infirmieres
Medecine factuelle
Engermagem (metodos de pesquisa)
100%
94%
42%
28%
22%
16%
14%
10%
10%
10%
8%
8%
8%
8%
8%
6%
6%
6%
6%
6%
~ 12 ~
Top Authors for RT71-81.5
Polit, Denise F.
Beck, Cheryl Tatano
Fitzpatrick, Joyce J., 1944Hungler, Bernadette P.
Wood, Marilynn J.
Brink, Pamela J.
Grove, Susan K.
Watson, Jean, 1940Waltz, Carolyn Feher
National Nursing Staff Development Organization
(U.S.)
Burns, Nancy, Ph.D.
Benner, Patricia E.
Haase, Patricia T.
Oermann, Marilyn H.
Tanner, Christine A., 1947Kachoyeanos, Mary
Midwest Nursing Research Society
Kraegel, Janet M.
National League for Nursing
American Association of Colleges of Nursing
Languages of RT71-81.5
English
French
Spanish
Chinese
Swedish
German
Dutch
Norwegian
Portuguese
Japanese
Russian
Hebrew
Danish
Thai
Ukrainian
Korean
Other
Titles
6838
178
61
12
11
7
4
2
2
1
1
1
1
1
1
1
11
~ 13 ~
14%
10%
6%
6%
4%
4%
4%
4%
4%
4%
4%
4%
4%
4%
2%
2%
2%
2%
2%
2%
Publish or Perish Journal Impact Analysis
The most widely owned publication in the field is Nurse Educator. According to Publish or
Perish, the three most highly cited works in this journal are:
Benner, P., & Wrubel, J. (1982). Skilled clinical knowledge: The value of perceptual awareness.
Nurse Educator, 7(3), 11-17. (Cited 124 times)
Darling, L.A.W. (1985). What do nurses want in a mentor? Nurse Educator, 10(1), 18-20.
(Cited 98 times)
Piles, Carole L. (1990). Providing spiritual care. Nurse Educator, 15(1), 36-41. (Cited 86
times)
Audience Level Analysis
Two titles from each of the four brief test levels were selected and analyzed using OCLC’s
Audience Level Module. Interestingly, almost all titles selected were identified to be in the
range for the Instructional level (0.51-0.75). This included Basic titles that have a higher
audience level than expected as well as Research titles that have a lower audience level than
expected. While most items were in the Instructional range, the audience levels did increase as
holding counts decreased, as would be expected.
Minimal
Just a nurse : from clinic to hospital ward, battleground to cancer unit : the hearts and minds of
nurses today by Kraegel, Janet M.; Kachoyeanos, Mary.
Audience Level: 0.24 (Minimal – within 0-0.25 range)
Hospitals, paternalism, and the role of the nurse by Ashley, Jo Ann
Audience Level: 0.48 (Basic – not within 0-0.25 range)
Basic
Toward a caring curriculum : a new pedagogy for nursing by Bevis, Em Olivia.; Watson, Jean
Audience Level: 0.57 (Instructional – not within 0.26-0.50 range)
Basic steps in planning nursing research : from question to proposal by Brink, Pamela J.; Wood,
Marilynn J.
Audience Level: 0.63 (Instructional – not within 0.26-0.50 range)
Instructional
Speaking of nursing-- : narratives of practice, research, policy, and the profession by Diers,
Donna
Audience Level: 0.6 (Instructional – within 0.51-0.75 range)
~ 14 ~
Educational competencies for graduates of associate degree nursing programs / by Coxwell, G.;
Gillerman, H.
Audience Level: 0.63 (Instructional – within 0.51-0.75 range)
Research
Analyzing the cost of baccalaureate nursing education by Brown, Elsa L.; Brown, Elsa L.;
Lyons, John M.
Audience Level: 0.72 (Instructional – not within 0.76-1 range)
Statement on graduate education in nursing / by [not given]
Audience Level: 0.74 (Instructional – not within 0.76-1 range)
Web of Science Journal Analysis
In order to search for the literature in the RT71-81.5 range in Web of Science, I performed a
search using the Science Citation Index Expanded and the Social Sciences Citation Index for
<Topic=("nurs* education") OR Topic=("nurs* research")>. The results of this search were
analyzed in four ways:
Top 10 Authors:
Authors
[ANON]
WATSON, R
JOHNSON, M
HAPPELL, B
LEINO-KILPI, H
JACKSON, D
VIRANI, R
WEBB, C
IRONSIDE, PM
ESTABROOKS, CA
Record Count
63
33
20
18
17
16
16
16
15
14
% of 5834
1.08%
0.57%
0.34%
0.31%
0.29%
0.27%
0.27%
0.27%
0.26%
0.24%
Top 10 Institutions
Institution Name
UNIV WISCONSIN
UNIV PENN
UNIV ALBERTA
UNIV N CAROLINA
UNIV TEXAS
UNIV CALIF SAN FRANCISCO
UNIV WASHINGTON
UNIV MICHIGAN
UNIV NOTTINGHAM
INDIANA UNIV
Record Count
102
84
80
78
70
66
63
59
55
52
~ 15 ~
% of 5834
1.75%
1.44%
1.37%
1.34%
1.20%
1.13%
1.08%
1.01%
0.94%
0.89%
Top 10 Source Titles
Source Title
JOURNAL OF ADVANCED NURSING
NURSE EDUCATION TODAY
JOURNAL OF NURSING EDUCATION
JOURNAL OF PROFESSIONAL NURSING
INTERNATIONAL JOURNAL OF NURSING STUDIES
JOURNAL OF CLINICAL NURSING
NURSING OUTLOOK
NURSING RESEARCH
NURSING SCIENCE QUARTERLY
ADVANCES IN NURSING SCIENCE
Literature by Publication Year (1980-2010)
Publication Year
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
Record Count
39
25
30
30
53
49
42
46
40
29
57
42
87
76
150
219
196
215
208
238
268
238
255
261
285
287
360
438
507
524
531
% of 5834
0.67%
0.43%
0.51%
0.51%
0.91%
0.84%
0.72%
0.79%
0.69%
0.50%
0.98%
0.72%
1.49%
1.30%
2.57%
3.75%
3.36%
3.69%
3.57%
4.08%
4.59%
4.08%
4.37%
4.47%
4.89%
4.92%
6.17%
7.51%
8.69%
8.98%
9.10%
~ 16 ~
Record
Count
929
703
466
278
208
188
165
165
119
90
% of 5834
15.92%
12.05%
7.99%
4.77%
3.57%
3.22%
2.83%
2.83%
2.04%
1.54%
~ 17 ~