Frequencies for first 10,000 rows of timemdfl variable in namcs2013 dataset : Was | variable | imputed: | time spent | with | physician | Freq. Percent Cum. ------------+----------------------------------- Not imputed | 5,994 59.94 59.94 Imputed | 4,006 40.06 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 27 Mar 2017