This document discusses how the unemployment rate in the United States is measured. It provides statistics on unemployment rates from 1980 to 2020, showing rates were highest during recessions. The unemployment rate is calculated using data from the Current Population Survey conducted by the Census Bureau and Bureau of Labor Statistics. To be counted as unemployed, a person must be at least 16 years old and actively seeking work. Those who are underemployed or discouraged workers are not included in the unemployment rate.