Frequencies for first 10,000 rows of drugid24 variable in nhamcsed2014 dataset :

    Drug ID |
   code for |
 medication |
        #24 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,990       99.90       99.90
     d00037 |          1        0.01       99.91
     d00070 |          1        0.01       99.92
     d00083 |          1        0.01       99.93
     d00174 |          1        0.01       99.94
     d00278 |          1        0.01       99.95
     d00438 |          1        0.01       99.96
     d00743 |          1        0.01       99.97
     d03165 |          1        0.01       99.98
     d03797 |          1        0.01       99.99
     d04275 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017