| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | field of research of postdocs at federally funded research and development centers: 2012 and 2019 |  |  |  |  |
| 3 | field of research | 2012 |  | 2019 |  |
| 4 |  | total | % of total | total | % of total |
| 5 | all postdocs | 2793 | 100 | 3335 | 100 |
| 6 | science | 2108 | 75.5 | 2132 | 63.9 |
| 7 | agricultural sciences | 0 |  | 3 | 0.1 |
| 8 | biological and biomedical sciences | 247 | 8.8 | 222 | 6.7 |
| 9 | chemistry | 496 | 17.8 | 467 | 14 |
| 10 | computer and information sciences | 123 | 4.4 | 180 | 5.4 |
| 11 | geosciences, atmospheric sciences, and ocean sciences | 240 | 8.6 | 262 | 7.9 |
| 12 | mathematics and statistics | 61 | 2.2 | 70 | 2.1 |
| 13 | natural resources and conservationa | na | na | 27 | 0.8 |
| 14 | physics and astronomy | 861 | 30.8 | 773 | 23.2 |
| 15 | psychology | 1 |  | 0 |  |
| 16 | social sciences | 6 | 0.2 | 7 | 0.2 |
| 17 | other science fields | 73 | 2.6 | 121 | 3.6 |
| 18 | engineering | 612 | 21.9 | 1028 | 30.8 |
| 19 | aerospace, aeronautical, and astronautical engineering | 17 | 0.6 | 30 | 0.9 |
| 20 | agricultural engineering | 0 | 0 | 0 | 0 |
| 21 | bioengineering and biomedical engineering | 17 | 0.6 | 18 | 0.5 |
| 22 | chemical engineering | 84 | 3 | 183 | 5.5 |
| 23 | civil engineering | 15 | 0.5 | 61 | 1.8 |
| 24 | electrical, electronics, and communications engineering | 42 | 1.5 | 97 | 2.9 |
| 25 | engineering mechanics, physics, and science | 20 | 0.7 | 140 | 4.2 |
| 26 | industrial and manufacturing engineering | 0 |  | 4 | 0.1 |
| 27 | materials and metallurgical engineering | 226 | 8.1 | 221 | 6.6 |
| 28 | mechanical engineering | 91 | 3.3 | 176 | 5.3 |
| 29 | nuclear engineering | 48 | 1.7 | 66 | 2 |
| 30 | petroleum engineering | 0 |  | 3 | 0.1 |
| 31 | other engineering fields | 52 | 1.9 | 29 | 0.9 |
| 32 | health | 30 | 1.1 | 1 |  |
| 33 | multidisciplinary | 31 | 1.1 | 113 | 3.4 |
| 34 | non-science and engineering | 0 |  | 15 | 0.4 |
| 35 | field of research not known | 12 | 0.4 | 46 | 1.4 |

Question: the number of postdocs doing research in science fields in 2019 is similar to that in 2012, how many percentage points has declined?
Answer: 11.6

Question: the growth in ffrdc postdoc research is happening in engineering fields, how many percentage points of share in 2012?
Answer: 21.9

Question: the growth in ffrdc postdoc research is happening in engineering fields, how many percentage points has increased to in 2019?
Answer: 30.8

Question: how many postdocs conducted multidisciplinary research in 2019?
Answer: 113