SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
16	HEAVY CONSTRUCTION CONTRACTORS	619
17	SPECIAL TRADE CONTRACTORS	2,909
20	FOOD AND KINDRED PRODUCTS	719
24	LUMBER AND WOOD PRODUCTS	1,068
26	PAPER AND ALLIED PRODUCTS	2,250
27	PRINTING AND PUBLISHING	259
28	CHEMICALS AND ALLIED PRODUCTS	1,254
33	PRIMARY METAL INDUSTRIES	739
34	FABRICATED METAL PRODUCTS	507
35	MACHINERY, EXCEPT ELECTRICAL	22,315	5,031
36	ELECTRIC AND ELECTRONIC EQUIPMENT	618	41
37	TRANSPORTATION EQUIPMENT	351
38	INSTRUMENTS AND RELATED PRODUCTS	645
45	TRANSPORTATION BY AIR	3
49	ELECTRIC, GAS, AND SANITARY SERVICES	7,451
80	HEALTH SERVICES	83
TOTAL		41,791	5,072

*(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.