SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	1,199
16	HEAVY CONSTRUCTION CONTRACTORS	3,129	75
17	SPECIAL TRADE CONTRACTORS	6,424
20	FOOD AND KINDRED PRODUCTS	163
24	LUMBER AND WOOD PRODUCTS	1,071	178
25	FURNITURE AND FIXTURES	270
28	CHEMICALS AND ALLIED PRODUCTS	4,051	2,102
30	RUBBER AND MISC. PLASTICS PRODUCTS	2,181	1,189
31	LEATHER AND LEATHER PRODUCTS	1,080	295
32	STONE, CLAY, AND GLASS PRODUCTS	1,001
33	PRIMARY METAL INDUSTRIES	291
34	FABRICATED METAL PRODUCTS	2,965
35	MACHINERY, EXCEPT ELECTRICAL	448
36	ELECTRIC AND ELECTRONIC EQUIPMENT	725
37	TRANSPORTATION EQUIPMENT	9,589	410
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	28
42	TRUCKING AND WAREHOUSING	8
51	WHOLESALE TRADE - NONDURABLE GOODS	6,161	474
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	153
73	BUSINESS SERVICES	93	75
75	AUTO REPAIR, SERVICES, AND GARAGES	6,677
80	HEALTH SERVICES	325	147
TOTAL		48,033	4,943

*(1) By survey design, not all 2-digit SICs were surveyed. (2) The estimates for each 2-digit SIC apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC. Not all SICs were surveyed. (3) When using the estimates, standard errors associated with estimates should be considered. (4) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.