SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	670
16	HEAVY CONSTRUCTION CONTRACTORS	619
17	SPECIAL TRADE CONTRACTORS	2,909
20	FOOD AND KINDRED PRODUCTS	1,527	419
24	LUMBER AND WOOD PRODUCTS	1,068
26	PAPER AND ALLIED PRODUCTS	2,250
27	PRINTING AND PUBLISHING	579
28	CHEMICALS AND ALLIED PRODUCTS	1,254
32	STONE, CLAY, AND GLASS PRODUCTS	5,553
33	PRIMARY METAL INDUSTRIES	227
35	MACHINERY, EXCEPT ELECTRICAL	50
36	ELECTRIC AND ELECTRONIC EQUIPMENT	886	24
37	TRANSPORTATION EQUIPMENT	60
45	TRANSPORTATION BY AIR	3
49	ELECTRIC, GAS, AND SANITARY SERVICES	9,839
72	PERSONAL SERVICES	161
80	HEALTH SERVICES	83
TOTAL		27,736	443

*(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.