Frequencies for first 10,000 rows of paypriv variable in nhamcsed2014 dataset : Expected | source of | payment: | Private | insurance | Freq. Percent Cum. ------------+----------------------------------- No | 6,599 65.99 65.99 Yes | 3,401 34.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 11 Apr 2017