Frequencies for first 10,000 rows of med30 variable in namcs2014 dataset :

                         Medication #30 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                          NO ENTRY MADE |      9,994       99.94       99.94
                           CHEMOTHERAPY |          1        0.01       99.95
                              MECLIZINE |          1        0.01       99.96
                              GLIPIZIDE |          1        0.01       99.97
                               PREVACID |          1        0.01       99.98
                            MONTELUKAST |          1        0.01       99.99
                                 COQ-10 |          1        0.01      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017