Unemployment rate is the total amount of able-bodied population expressed as relative quantity. The level itself is calculated as follows. Every month Bureau of Labor Statistics of the U.S. Department of Labor conducts survey of 60 000 households and more than 375 000 enterprises - the establishment survey. Fundamentals of surveys include such statistical data as:
For Household survey: age, sex, marital status, employment status.
For the Establishment survey: average weekwork, average hour earnings, wages.