SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
07	AGRICULTURAL SERVICES	4,029	2,015
13	OIL AND GAS EXTRACTION	15,957
15	GENERAL BUILDING CONTRACTORS	21,023	453
16	HEAVY CONSTRUCTION CONTRACTORS	10,922
17	SPECIAL TRADE CONTRACTORS	46,222
20	FOOD AND KINDRED PRODUCTS	34,604	13,601
22	TEXTILE MILL PRODUCTS	2,902	136
23	APPAREL AND OTHER TEXTILE PRODUCTS	225	45
24	LUMBER AND WOOD PRODUCTS	1,660	158
25	FURNITURE AND FIXTURES	56	28
26	PAPER AND ALLIED PRODUCTS	711	55
27	PRINTING AND PUBLISHING	3,709	122
28	CHEMICALS AND ALLIED PRODUCTS	23,943	3,925
29	PETROLEUM AND COAL PRODUCTS	3,115	406
31	LEATHER AND LEATHER PRODUCTS	2,795
32	STONE, CLAY, AND GLASS PRODUCTS	16,822	652
33	PRIMARY METAL INDUSTRIES	874	50
34	FABRICATED METAL PRODUCTS	766	123
35	MACHINERY, EXCEPT ELECTRICAL	10,794	413
36	ELECTRIC AND ELECTRONIC EQUIPMENT	3,225	632
37	TRANSPORTATION EQUIPMENT	3,180	1,722
38	INSTRUMENTS AND RELATED PRODUCTS	1,620	477
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	702	120
42	TRUCKING AND WAREHOUSING	1,055
45	TRANSPORTATION BY AIR	206
49	ELECTRIC, GAS, AND SANITARY SERVICES	673
50	WHOLESALE TRADE - DURABLE GOODS	1,800
51	WHOLESALE TRADE - NONDURABLE GOODS	704
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	7,982
73	BUSINESS SERVICES	30,362	11,275
80	HEALTH SERVICES	97,875	79,628
84	MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS	4,106	1,396
TOTAL		354,620	117,433

*(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.