SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
17	SPECIAL TRADE CONTRACTORS	15,930
24	LUMBER AND WOOD PRODUCTS	60
27	PRINTING AND PUBLISHING	3,364
37	TRANSPORTATION EQUIPMENT	2,715	204
38	INSTRUMENTS AND RELATED PRODUCTS	225
44	WATER TRANSPORTATION	1,708
47	TRANSPORTATION SERVICES	1,333	1,075
80	HEALTH SERVICES	41
TOTAL		25,375	1,279

*(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.