SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
28	CHEMICALS AND ALLIED PRODUCTS	12,248	7,200
32	STONE, CLAY, AND GLASS PRODUCTS	1,049
34	FABRICATED METAL PRODUCTS	412
36	ELECTRIC AND ELECTRONIC EQUIPMENT	343	63
37	TRANSPORTATION EQUIPMENT	147	49
38	INSTRUMENTS AND RELATED PRODUCTS	826	426
73	BUSINESS SERVICES	598	88
80	HEALTH SERVICES	4,243	2,903
TOTAL		19,867	10,730

*(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.