Frequencies for first 10,000 rows of paymcare variable in namcs2008 dataset : medicare | Freq. Percent Cum. ------------+----------------------------------- no | 8,163 81.63 81.63 yes | 1,837 18.37 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016