Frequencies for first 10,000 rows of med27 variable in nhamcsed2015 dataset :

                         Medication #27 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                          NO ENTRY MADE |      9,992       99.92       99.92
                               NICOTINE |          1        0.01       99.93
                                AVODART |          1        0.01       99.94
                                 BENTYL |          1        0.01       99.95
                                SENNA-S |          1        0.01       99.96
                              GLIPIZIDE |          1        0.01       99.97
                            SIMVASTATIN |          1        0.01       99.98
                           TRANDOLAPRIL |          1        0.01       99.99
                                 COQ-10 |          1        0.01      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017