Frequencies for first 10,000 rows of adrg1in1 variable in nhamcsed2002 dataset :

 ingredient |
code #1 for |
    adverse |
    drug #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,984       99.84       99.84
      50005 |         10        0.10       99.94
      50770 |          1        0.01       99.95
      53003 |          1        0.01       99.96
      53148 |          1        0.01       99.97
      55555 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016