Table 4.3.—Annual Average Full-Time-Equivalent Number of Research and Development Scientists and Engineers by Industry

[Thousands]

1960 1965 1970 1975 1980 1985 1987 1988 1989 1990 1991 1992
Total/1/302.1 348.4375.6363.9469.2646.8702.2714.4725.6717.5741.7783.2
Manufacturing industries(/T/)337.7359.6349.1448.2575.8603.0(/T/)(/T/)(/T/)(/T/)576.4
Food and kindred products5.06.26.46.97.3(/S/)(/S/)(/S/)(/S/)8.09.69.9
Chemicals and allied products36.637.941.444.853.173.575.576.778.378.982.287.4
Petroleum refining and extraction9.18.89.68.511.912.09.79.910.310.110.811.5
Rubber and miscellaneous plastics products5.45.86.98.5(/T/)(/T/)(/S/)(/S/)(/S/)(/S/)(/S/)14.9
Stone, clay, and glass products(/T/)3.34.44.65.57.18.68.68.68.56.85.3
Primary metal industries6.95.56.57.28.06.45.65.7(/S/)(/S/)(/S/)5.0
Fabricated metal products8.06.56.57.17.8(/S/)10.210.1(/S/)(/S/)(/S/)8.5
Industrial machinery and equipment32.629.942.554.265.785.797.199.1106.1109.8103.399.4
Electronic and other electric equipment75.8 89.896.281.3100.7115.6131.5136.6139.3137.9114.891.2
Transportation equipment94.0123.6112.094.5128.6169.8187.8190.6188.4175.8154.5142.9
Aircraft and missiles75.599.385.267.290.6137.5136.4139.4135.4123.2105.494.0
Other transportation equipment18.524.426.827.438.132.351.451.253.052.649.149.0
Instruments and related products10.612.015.118.433.8(/S/)(/S/)(/S/)(/S/)(/S/)(/S/)79.4
Other manufacturing industries(/T/)8.412.113.1(/S/)(/S/)16.215.5(/S/)(/S/)(/S/)21.3
Nonmanufacturing industries(/T/)10.716.014.821.071.099.2(/S/)(/S/)(/S/)(/S/)206.8

1. Annual average.

S Data are not shown separately because more than 50 percent were imputed by National Science Foundation; estimates included in total.

T Data are not shown separately; estimates included in total.

n.a. Not available.