SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	85
16	HEAVY CONSTRUCTION CONTRACTORS	2,999
17	SPECIAL TRADE CONTRACTORS	4,911
20	FOOD AND KINDRED PRODUCTS	4,827	2,950
22	TEXTILE MILL PRODUCTS	831
23	APPAREL AND OTHER TEXTILE PRODUCTS	260
24	LUMBER AND WOOD PRODUCTS	381
26	PAPER AND ALLIED PRODUCTS	6,088	2,985
27	PRINTING AND PUBLISHING	3,355	1,033
28	CHEMICALS AND ALLIED PRODUCTS	6,698	1,979
29	PETROLEUM AND COAL PRODUCTS	4,869
30	RUBBER AND MISC. PLASTICS PRODUCTS	562
31	LEATHER AND LEATHER PRODUCTS	786
32	STONE, CLAY, AND GLASS PRODUCTS	1,175	610
33	PRIMARY METAL INDUSTRIES	1,026
34	FABRICATED METAL PRODUCTS	10,249	279
35	MACHINERY, EXCEPT ELECTRICAL	5,600	350
36	ELECTRIC AND ELECTRONIC EQUIPMENT	4,368	3,282
37	TRANSPORTATION EQUIPMENT	1,216
38	INSTRUMENTS AND RELATED PRODUCTS	2,377	1,051
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	116	46
42	TRUCKING AND WAREHOUSING	344
45	TRANSPORTATION BY AIR	528
49	ELECTRIC, GAS, AND SANITARY SERVICES	2,397	173
50	WHOLESALE TRADE - DURABLE GOODS	520
51	WHOLESALE TRADE - NONDURABLE GOODS	3,738
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	3,574
73	BUSINESS SERVICES	816
75	AUTO REPAIR, SERVICES, AND GARAGES	2,049
80	HEALTH SERVICES	1,368	343
TOTAL		78,116	15,080

*(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.