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Table 29. Postdoctoral appointees in engineering in all institutions, by engineering field: 1979–2013
Year Total Aerospace
engineering
Agricultural
engineering
Architecturea Biomedical
engineering
Chemical
engineering
Civil
engineeringa
Electrical
engineering
Engineering
science
Industrial
engineering
Mechanical
engineering
Metallurgical
and materials
engineering
Mining
engineering
Nuclear
engineering
Petroleum
engineering
Engineer-
ing nec
1979 1,067 32 29 na 28 192 128 142 74 8 143 209 5 20 6 51
1980 981 20 13 na 25 185 122 123 79 16 137 172 3 22 6 58
1981 1,040 14 12 na 32 173 103 191 87 13 130 194 16 26 2 47
1982 980 25 9 na 28 177 103 178 76 9 130 168 10 18 4 45
1983 1,108 32 5 na 27 199 131 180 71 13 182 204 19 15 1 29
1984 1,203 42 11 na 31 246 146 178 63 21 196 168 18 19 4 60
1985 1,356 51 16 na 46 274 122 183 90 18 207 245 19 31 6 48
1986 1,405 48 17 na 53 298 140 175 67 25 240 250 25 31 1 35
1987 1,446 43 29 na 44 312 174 177 41 26 216 283 26 20 10 45
1988 1,690 48 31 na 47 425 203 187 38 32 218 325 63 17 8 48
1989 1,928 38 39 na 69 477 182 193 74 32 304 323 90 36 9 62
1990 1,950 67 34 na 71 557 168 242 76 6 222 363 19 30 15 80
1991 2,262 77 37 na 59 576 186 346 117 27 326 392 11 29 19 60
1992 2,369 92 39 na 79 544 188 318 71 38 352 450 23 34 12 129
1993 2,446 116 44 na 80 529 181 388 78 63 358 403 19 40 13 134
1994 2,606 100 51 na 135 527 210 411 95 54 388 441 24 39 14 117
1995 2,648 101 51 na 129 576 201 381 101 30 410 490 19 28 9 122
1996 2,677 109 51 na 140 545 230 395 93 30 425 496 10 28 6 119
1997 2,971 125 62 na 154 636 248 508 115 28 440 465 11 33 21 125
1998 2,853 133 56 na 180 613 225 488 110 30 434 404 10 19 14 137
1999 3,196 128 62 na 242 671 299 548 122 27 476 421 6 30 19 145
2000 3,313 111 56 na 220 703 295 525 163 48 480 507 8 40 20 137
2001 3,152 128 58 na 262 574 268 436 162 21 501 479 14 77 17 155
2002 3,566 140 65 na 284 758 342 613 169 43 441 507 10 26 15 153
2003 3,810 141 85 na 388 686 300 646 180 45 543 539 12 49 17 179
2004 3,949 141 79 na 425 689 313 654 180 50 514 567 9 67 14 247
2005 4,166 153 89 na 477 702 384 689 168 51 562 578 8 41 13 251
2006 4,642 165 116 na 591 735 458 721 224 51 644 571 11 85 18 252
2007olda 4,908 178 139 na 640 758 419 885 192 73 725 555 4 77 22 241
2007newa 4,942 178 139 5 640 790 417 884 183 71 722 564 5 73 22 249
2008 5,462 154 135 11 710 880 465 987 214 115 784 605 5 85 28 284
2009 6,416 168 110 22 960 1,084 535 1,025 226 109 948 758 4 90 36 341
2010b, c 6,969 212 119 10 1,023 1,077 571 1,095 236 151 1,021 841 4 107 44 458
2011c 6,786 202 129 16 1,069 1,137 551 1,035 281 121 889 860 4 111 35 346
2012 7,103 170 133 6 1,161 1,098 590 1,152 292 127 985 854 5 120 53 357
2013 7,106 202 152 17 1,103 1,230 587 1,180 240 133 1,034 809 7 105 49 258

na = not applicable; data were not collected at this level of detail.
nec = not elsewhere classified.
a In 2007, eligible fields were reclassified, newly eligible fields were added, and the survey was redesigned to improve coverage and coding of eligible units. "2007new" presents data as collected in 2007; "2007old" shows data as they would have been collected in prior years. Architecture is reported as a separate field of engineering in 2007new; data were reported under Civil engineering in 2007old and previous years. See appendix A in http://www.nsf.gov/statistics/nsf10307/ for more detail.
b In 2010, the postdoc section of the survey was expanded, and significant effort was made to ensure that appropriate personnel were providing postdoc data (see appendix A for more information). Thus, it is unclear how much of the increases in 2010 and later years over 2009 and prior years are from growth in postdoctoral appointments and how much are from improved data collection. More information on the changes to the postdoc data collection is available at http://www.nsf.gov/statistics/infbrief/nsf13334/.
c Postdoc data from 2010 and 2011 were reimputed following the 2012 data collection; these data supersede those contained in previous reports.
NOTE: "Field" refers to the field of the unit that reports postdocs to the Survey of Graduate Students and Postdoctorates in Science and Engineering.
SOURCE: National Science Foundation, National Center for Science and Engineering Statistics, NSF-NIH Survey of Graduate Students and Postdoctorates in Science and Engineering.
Data from survey cycle Fall 2013, as of 8 August 2014.