SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	10,655	5
16	HEAVY CONSTRUCTION CONTRACTORS	623
17	SPECIAL TRADE CONTRACTORS	4,416
20	FOOD AND KINDRED PRODUCTS	724
22	TEXTILE MILL PRODUCTS	295	35
23	APPAREL AND OTHER TEXTILE PRODUCTS	86	86
26	PAPER AND ALLIED PRODUCTS	218
27	PRINTING AND PUBLISHING	466
28	CHEMICALS AND ALLIED PRODUCTS	5,305	2,203
30	RUBBER AND MISC. PLASTICS PRODUCTS	1,336	1,080
31	LEATHER AND LEATHER PRODUCTS	3,977	3,540
35	MACHINERY, EXCEPT ELECTRICAL	1,458	11
36	ELECTRIC AND ELECTRONIC EQUIPMENT	11,530	9,021
37	TRANSPORTATION EQUIPMENT	2,639	187
38	INSTRUMENTS AND RELATED PRODUCTS	1,401	1,006
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	2,079	1,981
44	WATER TRANSPORTATION	685
45	TRANSPORTATION BY AIR	6,769	57
49	ELECTRIC, GAS, AND SANITARY SERVICES	3,809
72	PERSONAL SERVICES	161
80	HEALTH SERVICES	312	233
TOTAL		58,942	19,445

*(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.