Frequencies for first 10,000 rows of paywkcmp variable in namcs2015 dataset : Expected | source of | payment for | visit: | Workers | Compensatio | n | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,944 99.44 99.44 1 | 56 0.56 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 25 Oct 2017