Table 5-16
SEH doctorate holders employed in academia, by years since doctorate, number of postdoc positions held during career, and degree field: 1995 and 2006
(Percent distribution)
 
  All fields   Life sciences   Physical sciences
Years since doctorate and postdocs (n) 1995 2006   1995 2006   1995 2006
 
All years since doctorate 100.0 100.0   100.0 100.0   100.0 100.0
0 59.3 54.7   36.1 36.6   37.5 35.7
1 29.2 33.2   45.9 43.6   43.7 47.2
≥2 11.4 12.1   15.5 19.9   18.9 17.1
                 
1–3 years since doctorate 100.0 100.0   100.0 100.0   100.0 100.0
0 47.1 42.7   33.7 31.9   21.0 24.2
1 44.0 49.8   54.3 57.2   63.9 69.5
≥2 8.9 7.5   12.0 10.8   15.1 6.2
                 
4–7 years since doctorate 100.0 100.0   100.0 100.0   100.0 100.0
0 54.5 52.6   20.5 26.1   22.6 32.5
1 30.9 35.6   46.0 52.5   50.0 47.3
≥2 14.6 11.8   17.5 31.3   27.5 20.1
 

SEH = science, engineering, and health

NOTES: Academic employment limited to U.S. doctorate holders employed at 2- or 4-year colleges or universities, excluding those employed part time who are students or retired. Physical sciences include earth, atmospheric, and ocean sciences; life sciences include biological, agricultural, environmental, and health sciences. The number of postdoc positions held during career includes postdoc appointments outside academia.

SOURCE: National Science Foundation, National Center for Science and Engineering Statistics, special tabulations (2011) of 1995 and 2006 Surveys of Doctorate Recipients.

Science and Engineering Indicators 2012