11. Researchers Snigdha Srivastava and Nik Theodore compiled the numbers using the Current Employment Statistics survey and the Current Population Survey . 12. This increase follows a general trend that the Current Population Survey has shown since educational attainment was first measured in 1947. 13. The figures were based on the Census Bureau's Current Population Survey of 60, 000 U . S . households. 14. After this was taken over by the U . S . Census Bureau, it became known as the Current Population Survey . 15. They use a special 1993 supplement to the Census Bureau's Current Population Survey to match wages and benefits to firm size. 16. Levitan used data from the Current Population Survey , a monthly survey done by the Bureau of Labor Statistics on a nationwide basis. 17. The second source is the Census Bureau's Current Population Survey , the same source used to calculate the monthly unemployment rate. 18. The 703, 000 number is based on statistics compiled annually by the US Census Bureau in what is called the Current Population Survey . 19. The numbers come from the Census Bureau's annual Current Population Survey , a study of 52, 000 people conducted in March. 20. State-by-state unemployment numbers, based on the Census Bureau's separate Current Population Survey , also were released Friday.