SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
28	CHEMICALS AND ALLIED PRODUCTS	12,493	8,800
35	MACHINERY, EXCEPT ELECTRICAL	2,290	1,716
36	ELECTRIC AND ELECTRONIC EQUIPMENT	583	356
37	TRANSPORTATION EQUIPMENT	46	18
72	PERSONAL SERVICES	4,795	3,708
73	BUSINESS SERVICES	186	131
80	HEALTH SERVICES	168,318	142,158
TOTAL		188,711	156,886

*(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.