SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
17	SPECIAL TRADE CONTRACTORS	771
20	FOOD AND KINDRED PRODUCTS	13,688	2,310
22	TEXTILE MILL PRODUCTS	396	184
26	PAPER AND ALLIED PRODUCTS	1,649	198
27	PRINTING AND PUBLISHING	1,018	330
28	CHEMICALS AND ALLIED PRODUCTS	15	15
33	PRIMARY METAL INDUSTRIES	10,487	96
34	FABRICATED METAL PRODUCTS	5,514	31
35	MACHINERY, EXCEPT ELECTRICAL	10,397
37	TRANSPORTATION EQUIPMENT	467
45	TRANSPORTATION BY AIR	882	363
47	TRANSPORTATION SERVICES	258	86
50	WHOLESALE TRADE - DURABLE GOODS	2,014	138
73	BUSINESS SERVICES	3,052	872
80	HEALTH SERVICES	82
TOTAL		50,689	4,624

*(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.