SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	214	129
16	HEAVY CONSTRUCTION CONTRACTORS	4,083
17	SPECIAL TRADE CONTRACTORS	3,727
20	FOOD AND KINDRED PRODUCTS	286
22	TEXTILE MILL PRODUCTS	59	59
23	APPAREL AND OTHER TEXTILE PRODUCTS	4,877	4,877
24	LUMBER AND WOOD PRODUCTS	739
26	PAPER AND ALLIED PRODUCTS	77
27	PRINTING AND PUBLISHING	251
32	STONE, CLAY, AND GLASS PRODUCTS	2,445
33	PRIMARY METAL INDUSTRIES	377
34	FABRICATED METAL PRODUCTS	3,004
35	MACHINERY, EXCEPT ELECTRICAL	9,454	31
36	ELECTRIC AND ELECTRONIC EQUIPMENT	635	22
37	TRANSPORTATION EQUIPMENT	4,261
38	INSTRUMENTS AND RELATED PRODUCTS	11
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	293
42	TRUCKING AND WAREHOUSING	348
45	TRANSPORTATION BY AIR	3,625
48	COMMUNICATION	42	10
49	ELECTRIC, GAS, AND SANITARY SERVICES	2,134
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	3,496
75	AUTO REPAIR, SERVICES, AND GARAGES	5,567
80	HEALTH SERVICES	136
TOTAL		50,139	5,128

*(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.