Frequencies for first 10,000 rows of drugid26 variable in namcs2015 dataset :

Drug ID for |
 medication |
        #26 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,990       99.90       99.90
     d00426 |          1        0.01       99.91
     d00746 |          1        0.01       99.92
     d01025 |          1        0.01       99.93
     d03692 |          1        0.01       99.94
     d03904 |          1        0.01       99.95
     d04105 |          1        0.01       99.96
     d04121 |          1        0.01       99.97
     d04293 |          1        0.01       99.98
     d04514 |          1        0.01       99.99
     d05350 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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