SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	1,740
16	HEAVY CONSTRUCTION CONTRACTORS	4,715
17	SPECIAL TRADE CONTRACTORS	34,958
20	FOOD AND KINDRED PRODUCTS	1,303	254
22	TEXTILE MILL PRODUCTS	3,820
23	APPAREL AND OTHER TEXTILE PRODUCTS	37
24	LUMBER AND WOOD PRODUCTS	968
25	FURNITURE AND FIXTURES	497
26	PAPER AND ALLIED PRODUCTS	647
27	PRINTING AND PUBLISHING	251
28	CHEMICALS AND ALLIED PRODUCTS	1,480
30	RUBBER AND MISC. PLASTICS PRODUCTS	1,049
31	LEATHER AND LEATHER PRODUCTS	394
32	STONE, CLAY, AND GLASS PRODUCTS	643
33	PRIMARY METAL INDUSTRIES	5,471	78
34	FABRICATED METAL PRODUCTS	1,282
35	MACHINERY, EXCEPT ELECTRICAL	18,160	480
36	ELECTRIC AND ELECTRONIC EQUIPMENT	4,770	829
37	TRANSPORTATION EQUIPMENT	4,423	25
38	INSTRUMENTS AND RELATED PRODUCTS	3,730	611
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	118
42	TRUCKING AND WAREHOUSING	182	61
45	TRANSPORTATION BY AIR	6,707	57
49	ELECTRIC, GAS, AND SANITARY SERVICES	2,443	119
50	WHOLESALE TRADE - DURABLE GOODS	749
73	BUSINESS SERVICES	459	25
76	MISCELLANEOUS REPAIR SERVICES	18
80	HEALTH SERVICES	44
TOTAL		101,057	2,539

*(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.