SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
20	FOOD AND KINDRED PRODUCTS	1,965	357
22	TEXTILE MILL PRODUCTS	105
27	PRINTING AND PUBLISHING	613	202
33	PRIMARY METAL INDUSTRIES	578
35	MACHINERY, EXCEPT ELECTRICAL	198
36	ELECTRIC AND ELECTRONIC EQUIPMENT	959	480
37	TRANSPORTATION EQUIPMENT	413
42	TRUCKING AND WAREHOUSING	243
45	TRANSPORTATION BY AIR	1,185	118
72	PERSONAL SERVICES	9,154
73	BUSINESS SERVICES	26,600	11,963
80	HEALTH SERVICES	69,691	50,727
TOTAL		111,703	63,847

*(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.