SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	1,948	5
17	SPECIAL TRADE CONTRACTORS	2,049
27	PRINTING AND PUBLISHING	123
28	CHEMICALS AND ALLIED PRODUCTS	2,167	313
29	PETROLEUM AND COAL PRODUCTS	15,497	459
30	RUBBER AND MISC. PLASTICS PRODUCTS	278
32	STONE, CLAY, AND GLASS PRODUCTS	91	12
33	PRIMARY METAL INDUSTRIES	824
34	FABRICATED METAL PRODUCTS	799
35	MACHINERY, EXCEPT ELECTRICAL	3,945	133
36	ELECTRIC AND ELECTRONIC EQUIPMENT	2,025	431
37	TRANSPORTATION EQUIPMENT	4,005	545
38	INSTRUMENTS AND RELATED PRODUCTS	310	53
45	TRANSPORTATION BY AIR	409
50	WHOLESALE TRADE - DURABLE GOODS	9,462
73	BUSINESS SERVICES	1,750	374
76	MISCELLANEOUS REPAIR SERVICES	1,242
80	HEALTH SERVICES	2,038	746
TOTAL		48,962	3,072

*(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.