SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	7,613
17	SPECIAL TRADE CONTRACTORS	36,125	562
20	FOOD AND KINDRED PRODUCTS	2,055
22	TEXTILE MILL PRODUCTS	43
26	PAPER AND ALLIED PRODUCTS	251
28	CHEMICALS AND ALLIED PRODUCTS	10,750	2,175
32	STONE, CLAY, AND GLASS PRODUCTS	73	18
33	PRIMARY METAL INDUSTRIES	2,602	28
34	FABRICATED METAL PRODUCTS	2,076	216
35	MACHINERY, EXCEPT ELECTRICAL	906	56
36	ELECTRIC AND ELECTRONIC EQUIPMENT	220	141
37	TRANSPORTATION EQUIPMENT	1,777	835
38	INSTRUMENTS AND RELATED PRODUCTS	953
51	WHOLESALE TRADE - NONDURABLE GOODS	6,161	474
80	HEALTH SERVICES	41,495	38,969
84	MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS	1,643	164
TOTAL		114,743	43,640

*(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.