SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
28	CHEMICALS AND ALLIED PRODUCTS	722	52
32	STONE, CLAY, AND GLASS PRODUCTS	62
35	MACHINERY, EXCEPT ELECTRICAL	1,508
37	TRANSPORTATION EQUIPMENT	338
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	293
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	1,265
80	HEALTH SERVICES	186
TOTAL		4,374	52

*(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.