SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	72
16	HEAVY CONSTRUCTION CONTRACTORS	822
17	SPECIAL TRADE CONTRACTORS	3,346
20	FOOD AND KINDRED PRODUCTS	1,199
22	TEXTILE MILL PRODUCTS	721
24	LUMBER AND WOOD PRODUCTS	826
26	PAPER AND ALLIED PRODUCTS	2,003
27	PRINTING AND PUBLISHING	409
28	CHEMICALS AND ALLIED PRODUCTS	177
29	PETROLEUM AND COAL PRODUCTS	56
32	STONE, CLAY, AND GLASS PRODUCTS	452
33	PRIMARY METAL INDUSTRIES	1,366	14
34	FABRICATED METAL PRODUCTS	283	31
35	MACHINERY, EXCEPT ELECTRICAL	2,113	21
36	ELECTRIC AND ELECTRONIC EQUIPMENT	53
37	TRANSPORTATION EQUIPMENT	328
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	293
42	TRUCKING AND WAREHOUSING	802	8
44	WATER TRANSPORTATION	684
45	TRANSPORTATION BY AIR	4,019
49	ELECTRIC, GAS, AND SANITARY SERVICES	637
50	WHOLESALE TRADE - DURABLE GOODS	7,436
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	3,907
73	BUSINESS SERVICES	7
75	AUTO REPAIR, SERVICES, AND GARAGES	19,221
76	MISCELLANEOUS REPAIR SERVICES	1,380
80	HEALTH SERVICES	3,280	2,111
TOTAL		55,891	2,185

*(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.