Frequencies for first 10,000 rows of med24 variable in namcs2015 dataset :

 Medication |
        #24 |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,977       99.77       99.77
      00342 |          1        0.01       99.78
      02705 |          1        0.01       99.79
      03134 |          1        0.01       99.80
      03905 |          1        0.01       99.81
      04042 |          1        0.01       99.82
      04114 |          1        0.01       99.83
      04187 |          1        0.01       99.84
      07367 |          1        0.01       99.85
      07494 |          1        0.01       99.86
      21185 |          1        0.01       99.87
      34565 |          1        0.01       99.88
      35023 |          1        0.01       99.89
      35341 |          1        0.01       99.90
      41115 |          1        0.01       99.91
      89039 |          2        0.02       99.93
      95050 |          1        0.01       99.94
      95133 |          1        0.01       99.95
      95164 |          1        0.01       99.96
      96022 |          1        0.01       99.97
      98089 |          1        0.01       99.98
      99046 |          1        0.01       99.99
      99101 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017