SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
17	SPECIAL TRADE CONTRACTORS	1,986
20	FOOD AND KINDRED PRODUCTS	290
22	TEXTILE MILL PRODUCTS	52	52
23	APPAREL AND OTHER TEXTILE PRODUCTS	176
27	PRINTING AND PUBLISHING	492	101
28	CHEMICALS AND ALLIED PRODUCTS	98
33	PRIMARY METAL INDUSTRIES	159
34	FABRICATED METAL PRODUCTS	322
36	ELECTRIC AND ELECTRONIC EQUIPMENT	417	335
37	TRANSPORTATION EQUIPMENT	14
45	TRANSPORTATION BY AIR	499
73	BUSINESS SERVICES	9,512	4,343
75	AUTO REPAIR, SERVICES, AND GARAGES	3,990
80	HEALTH SERVICES	6,169	2,758
TOTAL		24,176	7,589

*(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.