Frequencies for first 10,000 rows of phys variable in namcs2014 dataset : Physician | seen | Freq. Percent Cum. ------------+----------------------------------- No | 251 2.51 2.51 Yes | 9,749 97.49 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 27 Mar 2017