Frequencies for first 10,000 rows of paywkcmp variable in nhamcsopd2011 dataset : Expected | source of | payment - | Worker's | Compensatio | n | Freq. Percent Cum. ------------+----------------------------------- No | 9,971 99.71 99.71 Yes | 29 0.29 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016