SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	4,419
17	SPECIAL TRADE CONTRACTORS	7,628
26	PAPER AND ALLIED PRODUCTS	47
33	PRIMARY METAL INDUSTRIES	1,591
35	MACHINERY, EXCEPT ELECTRICAL	61
36	ELECTRIC AND ELECTRONIC EQUIPMENT	657
38	INSTRUMENTS AND RELATED PRODUCTS	121
72	PERSONAL SERVICES	32
76	MISCELLANEOUS REPAIR SERVICES	1,160
80	HEALTH SERVICES	10
TOTAL		15,727

*(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.