Frequencies for first 10,000 rows of med30 variable in nhamcsed2014 dataset :

                          Medication 30 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                          NO ENTRY MADE |      9,998       99.98       99.98
                                  ZYVOX |          1        0.01       99.99
                              MEDIHONEY |          1        0.01      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017