Frequencies for first 10,000 rows of drugid24 variable in namcs2015 dataset :

Drug ID for |
 medication |
        #24 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,977       99.77       99.77
     a11354 |          1        0.01       99.78
     c00209 |          1        0.01       99.79
     d00001 |          1        0.01       99.80
     d00168 |          1        0.01       99.81
     d00212 |          1        0.01       99.82
     d00321 |          1        0.01       99.83
     d00426 |          1        0.01       99.84
     d00497 |          1        0.01       99.85
     d03128 |          1        0.01       99.86
     d03428 |          2        0.02       99.88
     d03805 |          1        0.01       99.89
     d03807 |          1        0.01       99.90
     d03826 |          1        0.01       99.91
     d03827 |          1        0.01       99.92
     d03904 |          1        0.01       99.93
     d04012 |          1        0.01       99.94
     d04220 |          1        0.01       99.95
     d04255 |          1        0.01       99.96
     d04829 |          1        0.01       99.97
     d04836 |          1        0.01       99.98
     d05348 |          1        0.01       99.99
     d06848 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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