| All fields |
41,750 |
42,439 |
42,541 |
42,647 |
41,092 |
41,365 |
40,824 |
39,989 |
40,770 |
42,155 |
|
|
|
|
|
|
|
|
|
|
|
| Science and engineering |
26,536 |
27,241 |
27,232 |
27,278 |
25,933 |
25,966 |
25,548 |
24,588 |
25,289 |
26,275 |
| Science |
20,528 |
20,932 |
21,117 |
21,354 |
20,603 |
20,645 |
20,043 |
19,512 |
20,011 |
20,499 |
| Biological/agricultural sciences |
6,493 |
6,842 |
6,867 |
6,955 |
6,647 |
6,892 |
6,666 |
6,699 |
6,758 |
6,983 |
| Agricultural sciences |
1,117 |
1,118 |
1,078 |
1,110 |
1,065 |
1,038 |
975 |
1,009 |
1,061 |
1,046 |
| Biological sciences |
5,376 |
5,724 |
5,789 |
5,845 |
5,582 |
5,854 |
5,691 |
5,690 |
5,697 |
5,937 |
| Earth, atmospheric, and ocean sciences |
699 |
711 |
782 |
741 |
706 |
663 |
630 |
673 |
646 |
672 |
| Atmospheric sciences |
130 |
125 |
149 |
125 |
124 |
143 |
116 |
117 |
139 |
126 |
| Earth sciences |
454 |
452 |
489 |
504 |
452 |
386 |
393 |
428 |
374 |
420 |
| Ocean sciences |
115 |
134 |
144 |
112 |
130 |
134 |
121 |
128 |
133 |
126 |
| Marine sciences |
32 |
27 |
30 |
18 |
30 |
35 |
36 |
42 |
36 |
59 |
| Oceanography |
83 |
107 |
114 |
94 |
100 |
99 |
85 |
86 |
97 |
67 |
| Mathematics/computer sciences |
2,187 |
2,042 |
2,032 |
2,104 |
1,939 |
1,909 |
1,833 |
1,725 |
1,859 |
2,024 |
| Computer sciences |
997 |
920 |
909 |
927 |
856 |
859 |
826 |
807 |
865 |
949 |
| Mathematics |
1,190 |
1,122 |
1,123 |
1,177 |
1,083 |
1,050 |
1,007 |
918 |
994 |
1,075 |
| Physical sciences |
3,841 |
3,839 |
3,769 |
3,824 |
3,579 |
3,407 |
3,394 |
3,212 |
3,325 |
3,353 |
| Astronomy |
173 |
192 |
198 |
206 |
159 |
185 |
186 |
144 |
168 |
165 |
| Astronomy |
89 |
84 |
71 |
91 |
59 |
78 |
89 |
54 |
70 |
68 |
| Astrophysics |
84 |
108 |
127 |
115 |
100 |
107 |
97 |
90 |
98 |
97 |
| Chemistry |
2,162 |
2,149 |
2,148 |
2,216 |
2,132 |
1,989 |
1,981 |
1,923 |
2,041 |
1,987 |
| Physics |
1,479 |
1,485 |
1,401 |
1,378 |
1,271 |
1,204 |
1,197 |
1,127 |
1,080 |
1,186 |
| Acoustics |
18 |
19 |
19 |
18 |
16 |
10 |
10 |
18 |
24 |
17 |
| Chemical and atomic/molecular physics |
110 |
129 |
106 |
100 |
100 |
110 |
81 |
82 |
73 |
82 |
| Elementary particle physics |
183 |
176 |
170 |
173 |
169 |
147 |
121 |
156 |
134 |
163 |
| Fluids physics a |
18 |
21 |
24 |
26 |
23 |
10 |
8 |
15 |
9 |
NA |
| Nuclear physics |
91 |
87 |
106 |
92 |
77 |
74 |
80 |
76 |
67 |
74 |
| Optics |
98 |
129 |
123 |
105 |
98 |
117 |
107 |
107 |
95 |
119 |
| Plasma/high-temperature physics |
46 |
48 |
39 |
55 |
49 |
38 |
39 |
29 |
32 |
37 |
| Polymer physics |
23 |
33 |
19 |
24 |
28 |
21 |
18 |
22 |
13 |
18 |
| Solid state/low-temperature physics |
371 |
364 |
328 |
314 |
307 |
279 |
295 |
298 |
272 |
276 |
| Physics, general |
355 |
323 |
255 |
190 |
202 |
224 |
206 |
173 |
171 |
142 |
| Physics, other |
166 |
156 |
212 |
281 |
202 |
174 |
232 |
151 |
190 |
258 |
| Other physical sciences |
27 |
13 |
22 |
24 |
17 |
29 |
30 |
18 |
36 |
15 |
| Psychology |
3,429 |
3,495 |
3,557 |
3,675 |
3,668 |
3,618 |
3,442 |
3,199 |
3,281 |
3,336 |
| Social sciences |
3,879 |
4,003 |
4,110 |
4,055 |
4,064 |
4,156 |
4,078 |
4,004 |
4,142 |
4,131 |
| Engineering |
6,008 |
6,309 |
6,115 |
5,924 |
5,330 |
5,321 |
5,505 |
5,076 |
5,278 |
5,776 |
| Aeronautical/astronautical engineering |
252 |
287 |
273 |
241 |
206 |
214 |
203 |
209 |
200 |
201 |
| Chemical engineering |
708 |
798 |
767 |
776 |
674 |
725 |
729 |
705 |
648 |
723 |
| Civil engineering |
656 |
698 |
655 |
650 |
584 |
556 |
594 |
626 |
674 |
675 |
| Electrical engineering |
1,731 |
1,741 |
1,720 |
1,596 |
1,478 |
1,544 |
1,576 |
1,395 |
1,466 |
1,649 |
| Industrial/manufacturing engineering |
284 |
259 |
246 |
229 |
211 |
176 |
206 |
230 |
213 |
217 |
| Materials/metallurgical engineering |
588 |
574 |
582 |
565 |
469 |
451 |
497 |
396 |
474 |
509 |
| Mechanical engineering |
1,025 |
1,052 |
1,022 |
1,022 |
855 |
864 |
953 |
827 |
814 |
853 |
| Education |
6,650 |
6,785 |
6,574 |
6,571 |
6,546 |
6,430 |
6,337 |
6,487 |
6,632 |
6,635 |
| Health |
1,329 |
1,324 |
1,421 |
1,500 |
1,407 |
1,592 |
1,622 |
1,653 |
1,636 |
1,730 |
| Humanities |
4,691 |
4,712 |
5,034 |
5,116 |
5,034 |
5,213 |
5,161 |
5,010 |
5,015 |
5,017 |
| Professional/other/unknown |
2,544 |
2,377 |
2,280 |
2,182 |
2,172 |
2,164 |
2,156 |
2,251 |
2,198 |
2,498 |
| NA = not available (i.e., subfield was not identified separately in questionnaire for that year). |
| a This subfield dropped in 2004. |
| b This subfield introduced in 2001. |
| NOTE: Categories are grouped differently from questionnaire and summary reports in that linguistics, history of science, American studies, and archaeology are included in social science and not in humanities, and public administration is included in social science and not in professional fields. |
| SOURCE: National Science Foundation/Division of
Science Resources Statistics, Survey of Earned Doctorates
NSF web refs
. |