SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	3,871	10
17	SPECIAL TRADE CONTRACTORS	16,022
27	PRINTING AND PUBLISHING	983	36
34	FABRICATED METAL PRODUCTS	8,227
35	MACHINERY, EXCEPT ELECTRICAL	2,561
36	ELECTRIC AND ELECTRONIC EQUIPMENT	7
37	TRANSPORTATION EQUIPMENT	797	3
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	142
42	TRUCKING AND WAREHOUSING	342
49	ELECTRIC, GAS, AND SANITARY SERVICES	343
80	HEALTH SERVICES	92
TOTAL		33,389	50

*(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.