SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
17	SPECIAL TRADE CONTRACTORS	1,033
28	CHEMICALS AND ALLIED PRODUCTS	705
30	RUBBER AND MISC. PLASTICS PRODUCTS	64	5
34	FABRICATED METAL PRODUCTS	929	54
35	MACHINERY, EXCEPT ELECTRICAL	445	77
36	ELECTRIC AND ELECTRONIC EQUIPMENT	35
37	TRANSPORTATION EQUIPMENT	1,647	135
45	TRANSPORTATION BY AIR	11,893	57
50	WHOLESALE TRADE - DURABLE GOODS	169
73	BUSINESS SERVICES	37
75	AUTO REPAIR, SERVICES, AND GARAGES	2,186
80	HEALTH SERVICES	36
TOTAL		19,180	329

*(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.