SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	2,167
16	HEAVY CONSTRUCTION CONTRACTORS	23,551	707
17	SPECIAL TRADE CONTRACTORS	2,743
20	FOOD AND KINDRED PRODUCTS	2,501
22	TEXTILE MILL PRODUCTS	21,011	1,645
23	APPAREL AND OTHER TEXTILE PRODUCTS	5,069	4,359
24	LUMBER AND WOOD PRODUCTS	8,194	376
26	PAPER AND ALLIED PRODUCTS	5,310
27	PRINTING AND PUBLISHING	10,313	916
28	CHEMICALS AND ALLIED PRODUCTS	6,519	403
29	PETROLEUM AND COAL PRODUCTS	878
30	RUBBER AND MISC. PLASTICS PRODUCTS	338	246
32	STONE, CLAY, AND GLASS PRODUCTS	2,458	123
33	PRIMARY METAL INDUSTRIES	8,517	112
34	FABRICATED METAL PRODUCTS	2,462
35	MACHINERY, EXCEPT ELECTRICAL	11,201	34
36	ELECTRIC AND ELECTRONIC EQUIPMENT	4,790	976
37	TRANSPORTATION EQUIPMENT	7,001	895
38	INSTRUMENTS AND RELATED PRODUCTS	1,487	804
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	1,385
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	5,026
42	TRUCKING AND WAREHOUSING	982
45	TRANSPORTATION BY AIR	173	70
49	ELECTRIC, GAS, AND SANITARY SERVICES	4,589
50	WHOLESALE TRADE - DURABLE GOODS	422
51	WHOLESALE TRADE - NONDURABLE GOODS	1,155
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	5,776
72	PERSONAL SERVICES	70
73	BUSINESS SERVICES	3,842	814
75	AUTO REPAIR, SERVICES, AND GARAGES	8,576
76	MISCELLANEOUS REPAIR SERVICES	9,273
80	HEALTH SERVICES	3,186	2,403
TOTAL		170,966	14,882

*(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.