Frequencies for first 10,000 rows of drg6ing1 variable in nhamcsed2005 dataset :

                             ing. #1 |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                       acetaminophen |         33        0.33        0.33
                  aluminum hydroxide |          2        0.02        0.35
                         amoxicillin |          3        0.03        0.38
                      benzyl alcohol |          1        0.01        0.39
                              biotin |          1        0.01        0.40
                             codeine |          1        0.01        0.41
                   diphtheria toxoid |          1        0.01        0.42
                      ergocalciferol |          1        0.01        0.43
              fluticasone propionate |          2        0.02        0.45
                         guaifenesin |          1        0.01        0.46
                 hydrochlorothiazide |          2        0.02        0.48
                  milk solids nonfat |          1        0.01        0.49
               multivitamins general |          2        0.02        0.51
                       phenobarbital |          1        0.01        0.52
                    sulbactin sodium |          1        0.01        0.53
                    sulfamethoxazole |          5        0.05        0.58
                   vitamin b complex |          1        0.01        0.59
            chlorpheniramine tannate |          1        0.01        0.60
                 piperacillin sodium |          1        0.01        0.61
                       memantine hcl |          1        0.01        0.62
                      duloxetine hcl |          1        0.01        0.63
                                   . |      9,937       99.37      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016