SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
17	SPECIAL TRADE CONTRACTORS	5,631
20	FOOD AND KINDRED PRODUCTS	1,403	30
22	TEXTILE MILL PRODUCTS	189
24	LUMBER AND WOOD PRODUCTS	357	14
26	PAPER AND ALLIED PRODUCTS	1,239	55
27	PRINTING AND PUBLISHING	916
28	CHEMICALS AND ALLIED PRODUCTS	15,073	3,538
29	PETROLEUM AND COAL PRODUCTS	2,969	452
32	STONE, CLAY, AND GLASS PRODUCTS	162	26
33	PRIMARY METAL INDUSTRIES	647	48
34	FABRICATED METAL PRODUCTS	3,674	287
35	MACHINERY, EXCEPT ELECTRICAL	8,102	57
36	ELECTRIC AND ELECTRONIC EQUIPMENT	579	196
37	TRANSPORTATION EQUIPMENT	807	8
42	TRUCKING AND WAREHOUSING	80
45	TRANSPORTATION BY AIR	184
49	ELECTRIC, GAS, AND SANITARY SERVICES	258
51	WHOLESALE TRADE - NONDURABLE GOODS	178
73	BUSINESS SERVICES	1,616	439
80	HEALTH SERVICES	13,937	10,100
TOTAL		57,997	15,249

*(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.