SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
16	HEAVY CONSTRUCTION CONTRACTORS	3,126
17	SPECIAL TRADE CONTRACTORS	1,155
20	FOOD AND KINDRED PRODUCTS	626
22	TEXTILE MILL PRODUCTS	2,950	2,572
25	FURNITURE AND FIXTURES	585	585
27	PRINTING AND PUBLISHING	1,535
28	CHEMICALS AND ALLIED PRODUCTS	6,235	2,234
29	PETROLEUM AND COAL PRODUCTS	3,345	170
30	RUBBER AND MISC. PLASTICS PRODUCTS	1,690	231
32	STONE, CLAY, AND GLASS PRODUCTS	3,169	123
33	PRIMARY METAL INDUSTRIES	1,357
34	FABRICATED METAL PRODUCTS	4,332	233
35	MACHINERY, EXCEPT ELECTRICAL	3,491	24
36	ELECTRIC AND ELECTRONIC EQUIPMENT	2,917	1,302
37	TRANSPORTATION EQUIPMENT	1,156	164
38	INSTRUMENTS AND RELATED PRODUCTS	522	135
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	3,681
45	TRANSPORTATION BY AIR	12,644
49	ELECTRIC, GAS, AND SANITARY SERVICES	471
50	WHOLESALE TRADE - DURABLE GOODS	1,169
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	953
73	BUSINESS SERVICES	494
TOTAL		57,604	7,771

*(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.