SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
07	AGRICULTURAL SERVICES	6,091	2,898
13	OIL AND GAS EXTRACTION	7,885
17	SPECIAL TRADE CONTRACTORS	3,990
20	FOOD AND KINDRED PRODUCTS	14,012	4,607
27	PRINTING AND PUBLISHING	9	4
28	CHEMICALS AND ALLIED PRODUCTS	8,025	2,250
34	FABRICATED METAL PRODUCTS	509	255
36	ELECTRIC AND ELECTRONIC EQUIPMENT	669	33
37	TRANSPORTATION EQUIPMENT	3
38	INSTRUMENTS AND RELATED PRODUCTS	3,046	1,862
45	TRANSPORTATION BY AIR	162
49	ELECTRIC, GAS, AND SANITARY SERVICES	563
72	PERSONAL SERVICES	1,928	701
73	BUSINESS SERVICES	4,291	1,702
80	HEALTH SERVICES	81,141	61,885
TOTAL		132,323	76,197

*(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.