4. The U.S. Bureau of Labor Statistics (BLS) conducts bi-monthly household surveys to measure labor force status in the United States. The survey provides a measure of employed people, such as nonfarm employment, hours, and earnings by industry. Data collected from this survey will be used to report and estimate employment levels and trends in the US.

(1) The table as following provides us the employment situations in April 2020 (04/2020) and November 2021 (11/2021) in the US. With the information given about adult population (Adult 16+), labor force (L), employed (E), calculate the values of unemployed (U), unemployment rate (UR) and labor force participation rate (LFPR) in the two periods. Also, use the data of 11/2021 to show step-by-step solutions for U, UR, LFPR in that month.

Variable	Definition	04/2020 (number, thousand)	11/2021 (number, thousand)
Adult 16+	Population 16 above (number)	259,896	261,085
L	Labor force (number)	156,481	160,536
E	Employed (number)	133,403	149,809
U	Unemployed (number)
UR	Unemployment rate %
LFPR	Labor Force Participation Rate %