SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
24	LUMBER AND WOOD PRODUCTS	8,969	768
28	CHEMICALS AND ALLIED PRODUCTS	943	52
33	PRIMARY METAL INDUSTRIES	2,530
34	FABRICATED METAL PRODUCTS	5,079	817
35	MACHINERY, EXCEPT ELECTRICAL	98	49
36	ELECTRIC AND ELECTRONIC EQUIPMENT	293	14
37	TRANSPORTATION EQUIPMENT	7,268	1,099
38	INSTRUMENTS AND RELATED PRODUCTS	13
44	WATER TRANSPORTATION	1,708
45	TRANSPORTATION BY AIR	11,836	57
73	BUSINESS SERVICES	10
TOTAL		38,744	2,855

*(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.