All surveyed fields |
542,073 |
551,832 |
561,352 |
574,241 |
573,883 |
575,785 |
570,534 |
571,578 |
Science and engineering |
445,037 |
457,931 |
469,517 |
482,711 |
497,223 |
508,114 |
511,759 |
513,206 |
Science |
328,413 |
334,662 |
345,094 |
351,988 |
360,501 |
366,312 |
371,833 |
370,873 |
Agricultural sciences |
12,133 |
12,285 |
12,548 |
13,099 |
14,110 |
14,561 |
15,078 |
15,226 |
Biological sciences |
65,861 |
67,267 |
67,507 |
68,199 |
68,580 |
69,522 |
69,686 |
70,996 |
Anatomy |
961 |
979 |
867 |
764 |
833 |
849 |
762 |
700 |
Biochemistry |
5,713 |
5,867 |
5,761 |
5,365 |
5,158 |
5,190 |
5,030 |
5,107 |
Biology |
13,789 |
13,548 |
13,220 |
13,888 |
14,005 |
14,103 |
13,840 |
13,476 |
Biometry and epidemiology |
4,789 |
5,483 |
5,694 |
5,956 |
5,682 |
6,346 |
6,736 |
7,703 |
Biophysics |
1,203 |
1,214 |
1,193 |
1,084 |
1,042 |
1,072 |
1,016 |
976 |
Botany |
1,848 |
1,888 |
1,818 |
1,801 |
1,830 |
1,863 |
1,915 |
1,852 |
Cell biology |
6,388 |
6,547 |
6,690 |
6,948 |
6,970 |
6,835 |
6,746 |
6,633 |
Ecology |
2,019 |
2,015 |
1,896 |
1,896 |
1,634 |
1,713 |
1,589 |
1,575 |
Entomology and parasitology |
1,114 |
1,078 |
1,078 |
1,079 |
1,079 |
1,116 |
1,119 |
1,187 |
Genetics |
2,096 |
2,096 |
2,064 |
2,072 |
2,242 |
2,333 |
2,403 |
2,342 |
Microbiology, immunology, and virology |
5,307 |
5,279 |
5,177 |
5,035 |
4,931 |
4,859 |
4,980 |
4,897 |
Nutrition |
4,659 |
4,665 |
4,305 |
4,638 |
4,754 |
4,867 |
4,605 |
4,644 |
Pathology |
1,612 |
1,633 |
1,580 |
1,618 |
1,450 |
1,314 |
1,209 |
1,139 |
Pharmacology |
2,985 |
3,030 |
3,013 |
3,005 |
3,163 |
3,101 |
3,053 |
3,088 |
Physiology |
2,238 |
2,242 |
2,574 |
2,687 |
2,776 |
2,847 |
2,932 |
2,983 |
Zoology |
1,143 |
1,081 |
1,105 |
923 |
873 |
894 |
1,058 |
1,079 |
Biological sciences nec |
7,997 |
8,622 |
9,472 |
9,440 |
10,158 |
10,220 |
10,693 |
11,615 |
Communicationa |
ne |
ne |
6,026 |
7,030 |
7,951 |
8,219 |
9,002 |
8,931 |
Computer sciences |
43,032 |
44,066 |
43,555 |
44,171 |
45,593 |
45,860 |
46,120 |
46,547 |
Earth, atmospheric, and ocean sciences |
14,032 |
13,812 |
13,359 |
13,663 |
13,942 |
14,756 |
14,887 |
15,169 |
Atmospheric sciences |
1,071 |
1,110 |
1,171 |
1,394 |
1,348 |
1,443 |
1,496 |
1,530 |
Geosciences |
6,856 |
6,781 |
6,719 |
6,766 |
7,141 |
7,800 |
7,909 |
8,198 |
Oceanography |
2,674 |
2,559 |
2,511 |
2,532 |
2,527 |
2,455 |
2,579 |
2,520 |
Earth, atmospheric, and ocean sciences nec |
3,431 |
3,362 |
2,958 |
2,971 |
2,926 |
3,058 |
2,903 |
2,921 |
Family and consumer sciences and human sciencesa |
ne |
ne |
2,491 |
3,007 |
3,084 |
3,491 |
3,790 |
3,588 |
Mathematical sciences |
19,037 |
19,540 |
19,180 |
19,722 |
20,527 |
21,330 |
21,967 |
22,579 |
Mathematics and applied mathematics |
15,004 |
15,207 |
14,841 |
14,894 |
15,679 |
16,029 |
16,541 |
16,813 |
Statistics |
4,033 |
4,333 |
4,339 |
4,828 |
4,848 |
5,301 |
5,426 |
5,766 |
Multidisciplinary and interdisciplinary studiesa |
ne |
ne |
3,693 |
4,686 |
5,511 |
6,742 |
5,785 |
5,550 |
Neurosciencea |
na |
na |
1,561 |
1,980 |
2,316 |
2,798 |
4,088 |
4,547 |
Physical sciences |
35,928 |
36,036 |
35,768 |
36,320 |
37,098 |
37,871 |
38,656 |
38,837 |
Astronomy |
1,211 |
1,233 |
1,232 |
1,275 |
1,409 |
1,331 |
1,345 |
1,278 |
Chemistry |
20,716 |
20,695 |
20,569 |
20,884 |
21,374 |
21,673 |
22,048 |
22,340 |
Physics |
13,509 |
13,589 |
13,575 |
13,636 |
13,834 |
14,294 |
14,607 |
14,691 |
Physical sciences nec |
492 |
519 |
392 |
525 |
481 |
573 |
656 |
528 |
Psychologyb |
47,217 |
48,773 |
48,106 |
48,427 |
46,564 |
45,246 |
45,608 |
44,452 |
Clinical psychology |
12,501 |
12,962 |
13,036 |
12,205 |
12,239 |
11,250 |
9,662 |
8,432 |
Psychology, general |
12,133 |
13,281 |
13,013 |
13,133 |
11,841 |
11,248 |
14,748 |
14,378 |
Psychology nec |
22,583 |
22,530 |
22,057 |
23,089 |
22,484 |
22,748 |
21,198 |
21,642 |
Social sciences |
91,173 |
92,883 |
91,300 |
91,684 |
95,225 |
95,916 |
97,166 |
94,451 |
Agricultural economics |
2,151 |
2,120 |
1,983 |
2,126 |
2,215 |
2,171 |
2,090 |
2,030 |
Anthropology (cultural and social) |
7,726 |
7,652 |
7,682 |
7,845 |
7,872 |
8,013 |
7,891 |
7,745 |
Economics (except agricultural) |
11,438 |
11,659 |
11,928 |
12,275 |
13,200 |
13,450 |
13,940 |
13,990 |
Geography |
4,228 |
4,089 |
4,089 |
4,148 |
4,196 |
4,401 |
4,542 |
4,379 |
History and philosophy of science |
742 |
910 |
845 |
998 |
851 |
552 |
469 |
461 |
Linguistics |
2,821 |
2,801 |
2,604 |
2,824 |
2,882 |
2,863 |
2,997 |
3,020 |
Political science |
36,118 |
36,296 |
35,806 |
35,342 |
37,744 |
38,578 |
41,429 |
40,842 |
Sociology |
8,214 |
8,239 |
8,148 |
8,531 |
8,528 |
8,695 |
8,578 |
8,240 |
Sociology and anthropology |
818 |
808 |
659 |
626 |
553 |
305 |
268 |
255 |
Social sciences nec |
16,917 |
18,309 |
17,556 |
16,969 |
17,184 |
16,888 |
14,962 |
13,489 |
Engineering |
116,624 |
123,269 |
124,423 |
130,723 |
136,722 |
141,802 |
139,926 |
142,333 |
Aerospace engineering |
4,357 |
4,480 |
4,480 |
4,761 |
5,096 |
5,474 |
5,605 |
4,986 |
Agricultural engineering |
1,073 |
1,126 |
1,126 |
1,233 |
1,303 |
1,457 |
1,655 |
1,544 |
Architecturea |
na |
na |
4,483 |
5,760 |
6,661 |
6,647 |
3,085 |
2,340 |
Biomedical engineering |
6,430 |
6,848 |
6,871 |
7,334 |
7,879 |
8,439 |
9,074 |
9,085 |
Chemical engineering |
7,151 |
7,291 |
7,492 |
7,794 |
8,077 |
8,573 |
8,741 |
9,142 |
Civil engineeringa |
17,158 |
19,189 |
15,461 |
16,169 |
17,708 |
18,499 |
18,528 |
18,810 |
Electrical engineering |
35,948 |
37,708 |
37,887 |
38,248 |
38,070 |
38,609 |
39,400 |
40,390 |
Engineering science |
1,967 |
1,824 |
1,772 |
1,932 |
2,004 |
2,020 |
2,054 |
2,173 |
Industrial engineering |
12,959 |
13,333 |
13,504 |
14,758 |
14,626 |
13,936 |
13,420 |
13,575 |
Mechanical engineering |
17,156 |
17,834 |
17,815 |
18,723 |
20,201 |
21,519 |
20,988 |
22,228 |
Metallurgical and materials engineering |
5,223 |
5,310 |
5,259 |
5,486 |
5,822 |
6,216 |
6,579 |
6,917 |
Mining engineering |
238 |
296 |
211 |
283 |
302 |
408 |
498 |
355 |
Nuclear engineering |
1,099 |
1,208 |
1,180 |
1,201 |
1,243 |
1,459 |
1,499 |
1,513 |
Petroleum engineering |
808 |
1,006 |
1,006 |
1,000 |
1,184 |
1,289 |
1,292 |
1,520 |
Engineering nec |
5,057 |
5,816 |
5,876 |
6,041 |
6,546 |
7,257 |
7,508 |
7,755 |
Healthb |
97,036 |
93,901 |
91,835 |
91,530 |
76,660 |
67,671 |
58,775 |
58,372 |
Clinical medicine |
22,425 |
23,573 |
21,686 |
22,803 |
22,670 |
24,068 |
25,358 |
25,335 |
Anesthesiology |
1,042 |
589 |
589 |
294 |
163 |
66 |
8 |
3 |
Cardiology |
32 |
26 |
26 |
45 |
45 |
48 |
57 |
43 |
Endocrinology |
42 |
40 |
40 |
64 |
50 |
53 |
56 |
52 |
Gastroenterology |
18 |
28 |
28 |
15 |
15 |
7 |
7 |
2 |
Hematology |
14 |
9 |
9 |
8 |
11 |
6 |
1 |
5 |
Neurologya |
2,959 |
3,358 |
1,751 |
1,462 |
1,323 |
1,056 |
219 |
171 |
Obstetrics and gynecology |
54 |
81 |
81 |
83 |
89 |
79 |
100 |
91 |
Oncology and cancer research |
341 |
355 |
264 |
260 |
272 |
232 |
255 |
248 |
Ophthalmology |
414 |
407 |
379 |
1 |
1 |
5 |
2 |
2 |
Otorhinolaryngology |
14 |
15 |
15 |
14 |
4 |
4 |
2 |
2 |
Pediatrics |
284 |
302 |
302 |
207 |
186 |
211 |
132 |
125 |
Preventive medicine and community health |
13,821 |
14,945 |
15,517 |
17,105 |
17,586 |
19,076 |
21,729 |
22,238 |
Psychiatry |
274 |
278 |
218 |
188 |
233 |
260 |
88 |
100 |
Pulmonary disease |
10 |
24 |
24 |
13 |
13 |
12 |
14 |
12 |
Radiology |
225 |
270 |
281 |
320 |
385 |
396 |
339 |
335 |
Surgery |
105 |
47 |
31 |
31 |
40 |
59 |
30 |
35 |
Clinical medicine nec |
2,776 |
2,799 |
2,131 |
2,693 |
2,254 |
2,498 |
2,319 |
1,871 |
Other healthb |
74,611 |
70,328 |
70,149 |
68,727 |
53,990 |
43,603 |
33,417 |
33,037 |
Dental sciences |
1,614 |
1,537 |
1,688 |
1,643 |
1,770 |
1,661 |
1,764 |
1,707 |
Nursing |
29,760 |
27,901 |
27,901 |
26,779 |
18,706 |
10,415 |
6,578 |
6,950 |
Pharmaceutical sciences |
6,311 |
4,959 |
5,061 |
4,245 |
4,435 |
4,280 |
4,048 |
4,211 |
Speech pathology and audiology |
11,892 |
12,820 |
12,812 |
12,769 |
11,377 |
11,305 |
10,588 |
10,182 |
Veterinary sciences |
2,067 |
2,020 |
2,371 |
2,478 |
2,170 |
2,211 |
1,894 |
1,794 |
Other health nec |
22,967 |
21,091 |
20,316 |
20,813 |
15,532 |
13,731 |
8,545 |
8,193 |