All surveyed fields |
17,583 |
17,852 |
17,898 |
20,221 |
21,818 |
24,570 |
24,472 |
24,685 |
Science and engineering |
11,526 |
11,482 |
11,592 |
13,084 |
14,157 |
15,789 |
15,807 |
15,665 |
Science |
10,703 |
10,647 |
10,749 |
11,981 |
12,772 |
14,299 |
14,308 |
14,076 |
Agricultural sciences |
311 |
314 |
328 |
426 |
398 |
449 |
475 |
513 |
Biological sciences |
7,690 |
7,653 |
7,598 |
8,358 |
8,640 |
9,581 |
9,293 |
8,787 |
Anatomy |
167 |
162 |
149 |
147 |
169 |
196 |
178 |
139 |
Biochemistry |
914 |
835 |
819 |
860 |
923 |
1,001 |
892 |
857 |
Biology |
909 |
887 |
838 |
1,023 |
1,018 |
1,084 |
1,024 |
995 |
Biometry and epidemiology |
145 |
170 |
175 |
155 |
193 |
269 |
223 |
247 |
Biophysics |
69 |
61 |
56 |
45 |
51 |
83 |
63 |
65 |
Botany |
242 |
189 |
189 |
252 |
261 |
224 |
214 |
239 |
Cell biology |
947 |
858 |
887 |
1,014 |
1,142 |
1,193 |
1,165 |
1,127 |
Ecology |
75 |
79 |
75 |
96 |
96 |
96 |
81 |
97 |
Entomology and parasitology |
64 |
83 |
83 |
75 |
90 |
98 |
119 |
122 |
Genetics |
356 |
390 |
392 |
408 |
430 |
605 |
625 |
592 |
Microbiology, immunology, and virology |
901 |
1,017 |
979 |
974 |
993 |
1,153 |
1,211 |
1,144 |
Nutrition |
134 |
170 |
160 |
142 |
128 |
143 |
147 |
148 |
Pathology |
686 |
705 |
708 |
778 |
838 |
874 |
786 |
719 |
Pharmacology |
592 |
565 |
566 |
614 |
659 |
748 |
687 |
603 |
Physiology |
522 |
460 |
499 |
540 |
588 |
641 |
691 |
615 |
Zoology |
37 |
45 |
42 |
36 |
32 |
28 |
29 |
36 |
Biological sciences nec |
930 |
977 |
981 |
1,199 |
1,029 |
1,145 |
1,158 |
1,042 |
Communication a |
ne |
ne |
16 |
14 |
15 |
23 |
24 |
21 |
Computer sciences |
88 |
96 |
79 |
85 |
100 |
130 |
142 |
155 |
Earth, atmospheric, and ocean sciences |
445 |
389 |
382 |
468 |
487 |
593 |
652 |
744 |
Atmospheric sciences |
33 |
28 |
28 |
26 |
34 |
54 |
56 |
71 |
Geosciences |
154 |
148 |
151 |
186 |
165 |
180 |
196 |
226 |
Oceanography |
115 |
129 |
129 |
147 |
161 |
160 |
188 |
203 |
Earth, atmospheric, and ocean sciences nec |
143 |
84 |
74 |
109 |
127 |
199 |
212 |
244 |
Family and consumer sciences and human sciences a |
ne |
ne |
4 |
13 |
14 |
23 |
43 |
44 |
Mathematical sciences |
125 |
104 |
104 |
146 |
170 |
186 |
190 |
193 |
Mathematics and applied mathematics |
107 |
94 |
93 |
122 |
152 |
169 |
167 |
162 |
Statistics |
18 |
10 |
11 |
24 |
18 |
17 |
23 |
31 |
Multidisciplinary and interdisciplinary studies a |
ne |
ne |
63 |
124 |
166 |
280 |
240 |
263 |
Neuroscience a |
na |
na |
109 |
157 |
250 |
387 |
610 |
661 |
Physical sciences |
1,403 |
1,358 |
1,345 |
1,443 |
1,669 |
1,682 |
1,626 |
1,661 |
Astronomy |
81 |
81 |
81 |
112 |
143 |
141 |
153 |
148 |
Chemistry |
978 |
923 |
908 |
930 |
1,089 |
1,016 |
932 |
966 |
Physics |
314 |
322 |
324 |
366 |
400 |
479 |
486 |
488 |
Physical sciences nec |
30 |
32 |
32 |
35 |
37 |
46 |
55 |
59 |
Psychology b |
460 |
526 |
519 |
505 |
610 |
623 |
627 |
642 |
Clinical psychology |
48 |
58 |
58 |
49 |
102 |
98 |
67 |
72 |
Psychology, general |
263 |
286 |
281 |
309 |
336 |
350 |
336 |
331 |
Psychology nec |
149 |
182 |
180 |
147 |
172 |
175 |
224 |
239 |
Social sciences |
181 |
207 |
202 |
242 |
253 |
342 |
386 |
392 |
Agricultural economics |
11 |
15 |
13 |
16 |
16 |
16 |
16 |
23 |
Anthropology (cultural and social) |
36 |
30 |
30 |
48 |
47 |
49 |
45 |
53 |
Economics (except agricultural) |
2 |
13 |
15 |
8 |
18 |
18 |
10 |
15 |
Geography |
18 |
10 |
10 |
16 |
23 |
23 |
19 |
27 |
History and philosophy of science |
4 |
5 |
4 |
5 |
5 |
7 |
6 |
6 |
Linguistics |
14 |
19 |
16 |
13 |
4 |
10 |
12 |
17 |
Political science |
25 |
24 |
24 |
33 |
35 |
43 |
101 |
75 |
Sociology |
26 |
36 |
30 |
25 |
34 |
52 |
60 |
62 |
Sociology and anthropology |
3 |
0 |
0 |
2 |
1 |
0 |
1 |
1 |
Social sciences nec |
42 |
55 |
60 |
76 |
70 |
124 |
116 |
113 |
Engineering |
823 |
835 |
843 |
1,103 |
1,385 |
1,490 |
1,499 |
1,589 |
Aerospace engineering |
26 |
19 |
19 |
19 |
24 |
30 |
32 |
31 |
Agricultural engineering |
20 |
32 |
32 |
32 |
30 |
38 |
38 |
43 |
Architecture a |
na |
na |
2 |
4 |
11 |
5 |
7 |
3 |
Biomedical engineering |
169 |
163 |
163 |
217 |
324 |
325 |
344 |
388 |
Chemical engineering |
138 |
136 |
141 |
186 |
234 |
236 |
271 |
268 |
Civil engineering a |
100 |
81 |
78 |
118 |
125 |
148 |
153 |
149 |
Electrical engineering |
75 |
105 |
104 |
139 |
158 |
169 |
153 |
185 |
Engineering science |
28 |
34 |
34 |
41 |
54 |
46 |
61 |
59 |
Industrial engineering |
15 |
18 |
17 |
45 |
28 |
40 |
27 |
27 |
Mechanical engineering |
68 |
78 |
78 |
106 |
141 |
148 |
126 |
150 |
Metallurgical and materials engineering |
109 |
112 |
121 |
132 |
147 |
174 |
181 |
172 |
Mining engineering |
3 |
0 |
1 |
1 |
0 |
0 |
0 |
1 |
Nuclear engineering |
16 |
14 |
11 |
15 |
15 |
15 |
15 |
12 |
Petroleum engineering |
5 |
6 |
6 |
6 |
7 |
12 |
6 |
14 |
Engineering nec |
51 |
37 |
36 |
42 |
87 |
104 |
85 |
87 |
Health b |
6,057 |
6,370 |
6,306 |
7,137 |
7,661 |
8,781 |
8,665 |
9,020 |
Clinical medicine |
5,255 |
5,502 |
5,370 |
6,195 |
6,561 |
7,590 |
7,594 |
7,760 |
Anesthesiology |
136 |
134 |
134 |
142 |
166 |
206 |
171 |
181 |
Cardiology |
123 |
130 |
138 |
173 |
198 |
247 |
256 |
316 |
Endocrinology |
138 |
147 |
152 |
170 |
233 |
227 |
226 |
258 |
Gastroenterology |
98 |
103 |
103 |
101 |
107 |
118 |
147 |
153 |
Hematology |
95 |
124 |
124 |
147 |
173 |
149 |
162 |
175 |
Neurology a |
652 |
688 |
565 |
613 |
653 |
625 |
485 |
451 |
Obstetrics and gynecology |
112 |
101 |
101 |
131 |
158 |
201 |
204 |
199 |
Oncology and cancer research |
504 |
626 |
661 |
728 |
758 |
865 |
835 |
869 |
Ophthalmology |
149 |
176 |
176 |
215 |
222 |
207 |
216 |
241 |
Otorhinolaryngology |
59 |
57 |
57 |
55 |
61 |
55 |
75 |
60 |
Pediatrics |
438 |
436 |
436 |
513 |
529 |
718 |
758 |
878 |
Preventive medicine and community health |
139 |
174 |
180 |
229 |
245 |
362 |
376 |
420 |
Psychiatry |
444 |
478 |
453 |
532 |
552 |
604 |
614 |
684 |
Pulmonary disease |
48 |
72 |
72 |
91 |
97 |
119 |
135 |
129 |
Radiology |
282 |
312 |
295 |
299 |
340 |
361 |
336 |
328 |
Surgery |
366 |
361 |
351 |
385 |
441 |
456 |
469 |
529 |
Clinical medicine nec |
1,472 |
1,383 |
1,372 |
1,671 |
1,628 |
2,070 |
2,129 |
1,889 |
Other health b |
802 |
868 |
936 |
942 |
1,100 |
1,191 |
1,071 |
1,260 |
Dental sciences |
77 |
87 |
115 |
116 |
140 |
169 |
155 |
155 |
Nursing |
56 |
52 |
52 |
69 |
58 |
49 |
68 |
66 |
Pharmaceutical sciences |
229 |
261 |
280 |
289 |
353 |
388 |
360 |
360 |
Speech pathology and audiology |
26 |
48 |
48 |
34 |
39 |
32 |
30 |
38 |
Veterinary sciences |
221 |
208 |
250 |
244 |
243 |
242 |
240 |
311 |
Other health nec |
193 |
212 |
191 |
190 |
267 |
311 |
218 |
330 |