Frequencies for first 10,000 rows of med22 variable in namcs2015 dataset :

 Medication |
        #22 |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,966       99.66       99.66
      00101 |          1        0.01       99.67
      00273 |          1        0.01       99.68
      02196 |          1        0.01       99.69
      02705 |          1        0.01       99.70
      03192 |          1        0.01       99.71
      03319 |          1        0.01       99.72
      07265 |          1        0.01       99.73
      11540 |          1        0.01       99.74
      12077 |          1        0.01       99.75
      14930 |          1        0.01       99.76
      15100 |          1        0.01       99.77
      16505 |          1        0.01       99.78
      17888 |          1        0.01       99.79
      18640 |          1        0.01       99.80
      19840 |          1        0.01       99.81
      28595 |          1        0.01       99.82
      32905 |          1        0.01       99.83
      34495 |          2        0.02       99.85
      34565 |          1        0.01       99.86
      34575 |          1        0.01       99.87
      35060 |          1        0.01       99.88
      35155 |          1        0.01       99.89
      40285 |          1        0.01       99.90
      41780 |          1        0.01       99.91
      60115 |          1        0.01       99.92
      60790 |          1        0.01       99.93
      91061 |          1        0.01       99.94
      92105 |          1        0.01       99.95
      94099 |          1        0.01       99.96
      96022 |          1        0.01       99.97
      96041 |          1        0.01       99.98
      98036 |          1        0.01       99.99
      99080 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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