SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
24	LUMBER AND WOOD PRODUCTS	4,140
28	CHEMICALS AND ALLIED PRODUCTS	279	46
32	STONE, CLAY, AND GLASS PRODUCTS	2,315	294
38	INSTRUMENTS AND RELATED PRODUCTS	6,647	4,280
80	HEALTH SERVICES	1,012	772
TOTAL		14,394	5,393

*(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.