All surveyed fields |
21,624 |
22,643 |
22,653 |
24,478 |
25,338 |
28,305 |
28,373 |
28,277 |
Science and engineering |
13,532 |
14,355 |
14,536 |
15,337 |
16,182 |
18,172 |
18,567 |
18,572 |
Science |
11,769 |
12,448 |
12,628 |
13,339 |
13,855 |
15,506 |
15,860 |
15,720 |
Agricultural sciences |
70 |
62 |
62 |
50 |
50 |
54 |
79 |
66 |
Biological sciences |
8,266 |
8,541 |
8,509 |
8,983 |
8,889 |
10,184 |
10,138 |
9,733 |
Anatomy |
120 |
120 |
121 |
119 |
141 |
128 |
113 |
89 |
Biochemistry |
948 |
972 |
919 |
1,004 |
933 |
1,059 |
1,017 |
984 |
Biology |
1,116 |
1,302 |
1,222 |
1,289 |
1,221 |
1,270 |
1,200 |
1,185 |
Biometry and epidemiology |
121 |
153 |
156 |
169 |
198 |
339 |
324 |
304 |
Biophysics |
149 |
138 |
137 |
128 |
123 |
200 |
142 |
125 |
Botany |
9 |
11 |
11 |
14 |
15 |
14 |
31 |
19 |
Cell biology |
1,346 |
1,280 |
1,305 |
1,231 |
1,275 |
1,392 |
1,409 |
1,340 |
Ecology |
47 |
51 |
51 |
63 |
76 |
82 |
82 |
78 |
Entomology and parasitology |
9 |
11 |
11 |
12 |
6 |
10 |
12 |
23 |
Genetics |
473 |
585 |
594 |
645 |
669 |
921 |
942 |
930 |
Microbiology, immunology, and virology |
970 |
1,161 |
1,115 |
1,093 |
1,104 |
1,285 |
1,265 |
1,224 |
Nutrition |
37 |
30 |
30 |
19 |
14 |
51 |
58 |
52 |
Pathology |
1,049 |
1,066 |
1,078 |
1,204 |
1,117 |
1,108 |
1,040 |
975 |
Pharmacology |
531 |
471 |
475 |
516 |
535 |
644 |
629 |
547 |
Physiology |
465 |
454 |
527 |
559 |
585 |
622 |
663 |
601 |
Zoology |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Biological sciences nec |
876 |
736 |
757 |
918 |
877 |
1,059 |
1,211 |
1,257 |
Communication a |
ne |
ne |
16 |
23 |
27 |
33 |
37 |
41 |
Computer sciences |
177 |
222 |
209 |
227 |
275 |
334 |
358 |
365 |
Earth, atmospheric, and ocean sciences |
331 |
329 |
329 |
386 |
420 |
435 |
455 |
517 |
Atmospheric sciences |
4 |
8 |
8 |
11 |
8 |
12 |
26 |
19 |
Geosciences |
232 |
211 |
211 |
246 |
265 |
277 |
260 |
290 |
Oceanography |
82 |
94 |
94 |
106 |
114 |
65 |
84 |
113 |
Earth, atmospheric, and ocean sciences nec |
13 |
16 |
16 |
23 |
33 |
81 |
85 |
95 |
Family and consumer sciences and human sciences a |
ne |
ne |
0 |
0 |
2 |
6 |
13 |
13 |
Mathematical sciences |
210 |
198 |
206 |
273 |
291 |
343 |
315 |
336 |
Mathematics and applied mathematics |
183 |
181 |
180 |
233 |
257 |
308 |
275 |
292 |
Statistics |
27 |
17 |
26 |
40 |
34 |
35 |
40 |
44 |
Multidisciplinary and interdisciplinary studies a |
ne |
ne |
36 |
40 |
66 |
159 |
142 |
176 |
Neuroscience a |
na |
na |
193 |
246 |
368 |
473 |
758 |
902 |
Physical sciences |
2,201 |
2,377 |
2,378 |
2,432 |
2,591 |
2,600 |
2,640 |
2,666 |
Astronomy |
140 |
159 |
160 |
189 |
218 |
245 |
242 |
234 |
Chemistry |
1,320 |
1,389 |
1,389 |
1,391 |
1,417 |
1,430 |
1,389 |
1,444 |
Physics |
697 |
791 |
791 |
808 |
895 |
842 |
918 |
911 |
Physical sciences nec |
44 |
38 |
38 |
44 |
61 |
83 |
91 |
77 |
Psychology |
360 |
523 |
506 |
491 |
635 |
532 |
517 |
524 |
Clinical psychology |
27 |
26 |
26 |
23 |
78 |
81 |
35 |
48 |
Psychology, general |
209 |
360 |
355 |
356 |
422 |
321 |
332 |
294 |
Psychology nec |
124 |
137 |
125 |
112 |
135 |
130 |
150 |
182 |
Social sciences |
154 |
196 |
184 |
188 |
241 |
353 |
408 |
381 |
Agricultural economics |
4 |
2 |
2 |
1 |
2 |
3 |
5 |
4 |
Anthropology (cultural and social) |
21 |
27 |
27 |
25 |
20 |
27 |
37 |
39 |
Economics (except agricultural) |
8 |
14 |
14 |
13 |
43 |
42 |
26 |
36 |
Geography |
12 |
6 |
6 |
4 |
8 |
9 |
7 |
14 |
History and philosophy of science |
6 |
10 |
6 |
7 |
6 |
13 |
7 |
7 |
Linguistics |
18 |
14 |
8 |
8 |
6 |
14 |
15 |
14 |
Political science |
36 |
22 |
22 |
32 |
46 |
64 |
156 |
123 |
Sociology |
14 |
42 |
35 |
29 |
33 |
38 |
47 |
55 |
Sociology and anthropology |
1 |
1 |
1 |
1 |
3 |
0 |
0 |
0 |
Social sciences nec |
34 |
58 |
63 |
68 |
74 |
143 |
108 |
89 |
Engineering |
1,763 |
1,907 |
1,908 |
1,998 |
2,327 |
2,666 |
2,707 |
2,852 |
Aerospace engineering |
48 |
67 |
67 |
58 |
54 |
90 |
68 |
53 |
Agricultural engineering |
8 |
11 |
11 |
7 |
0 |
9 |
28 |
22 |
Architecture a |
na |
na |
3 |
4 |
4 |
3 |
3 |
4 |
Biomedical engineering |
331 |
367 |
367 |
404 |
522 |
541 |
560 |
561 |
Chemical engineering |
237 |
256 |
256 |
278 |
340 |
369 |
394 |
406 |
Civil engineering a |
139 |
141 |
138 |
143 |
153 |
178 |
182 |
180 |
Electrical engineering |
231 |
315 |
315 |
295 |
317 |
358 |
376 |
427 |
Engineering science |
173 |
161 |
161 |
145 |
152 |
182 |
209 |
204 |
Industrial engineering |
8 |
23 |
26 |
25 |
26 |
29 |
48 |
56 |
Mechanical engineering |
258 |
259 |
259 |
291 |
362 |
399 |
367 |
422 |
Metallurgical and materials engineering |
185 |
196 |
196 |
211 |
258 |
275 |
265 |
258 |
Mining engineering |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Nuclear engineering |
40 |
30 |
30 |
34 |
30 |
41 |
51 |
57 |
Petroleum engineering |
6 |
9 |
9 |
13 |
13 |
19 |
18 |
21 |
Engineering nec |
99 |
72 |
70 |
90 |
96 |
173 |
138 |
181 |
Health |
8,092 |
8,288 |
8,117 |
9,141 |
9,156 |
10,133 |
9,806 |
9,705 |
Clinical medicine |
7,789 |
7,932 |
7,726 |
8,796 |
8,789 |
9,734 |
9,437 |
9,321 |
Anesthesiology |
225 |
191 |
191 |
256 |
274 |
327 |
238 |
252 |
Cardiology |
288 |
276 |
314 |
344 |
347 |
325 |
356 |
359 |
Endocrinology |
130 |
163 |
177 |
189 |
312 |
296 |
279 |
287 |
Gastroenterology |
128 |
172 |
172 |
146 |
153 |
154 |
173 |
164 |
Hematology |
66 |
143 |
143 |
152 |
188 |
170 |
182 |
186 |
Neurology a |
1,056 |
1,124 |
917 |
970 |
904 |
864 |
653 |
648 |
Obstetrics and gynecology |
221 |
85 |
85 |
114 |
137 |
188 |
164 |
161 |
Oncology and cancer research |
598 |
775 |
838 |
981 |
990 |
1,080 |
1,057 |
1,080 |
Ophthalmology |
216 |
259 |
259 |
304 |
287 |
280 |
275 |
286 |
Otorhinolaryngology |
78 |
60 |
60 |
67 |
68 |
65 |
92 |
81 |
Pediatrics |
538 |
472 |
472 |
558 |
562 |
734 |
678 |
762 |
Preventive medicine and community health |
96 |
126 |
132 |
140 |
131 |
224 |
263 |
254 |
Psychiatry |
466 |
522 |
484 |
559 |
532 |
518 |
536 |
561 |
Pulmonary disease |
51 |
94 |
94 |
124 |
141 |
139 |
135 |
127 |
Radiology |
656 |
677 |
633 |
625 |
678 |
715 |
654 |
689 |
Surgery |
670 |
795 |
774 |
776 |
788 |
642 |
724 |
792 |
Clinical medicine nec |
2,306 |
1,998 |
1,981 |
2,491 |
2,297 |
3,013 |
2,978 |
2,632 |
Other health |
303 |
356 |
391 |
345 |
367 |
399 |
369 |
384 |
Dental sciences |
43 |
53 |
85 |
91 |
102 |
88 |
102 |
93 |
Nursing |
16 |
13 |
13 |
26 |
20 |
8 |
15 |
22 |
Pharmaceutical sciences |
5 |
25 |
25 |
30 |
46 |
40 |
44 |
74 |
Speech pathology and audiology |
7 |
31 |
31 |
15 |
17 |
15 |
14 |
21 |
Veterinary sciences |
84 |
101 |
119 |
72 |
43 |
65 |
60 |
56 |
Other health nec |
148 |
133 |
118 |
111 |
139 |
183 |
134 |
118 |