Frequencies for first 10,000 rows of dinga12 variable in nhamcsed2001 dataset :

 ingredient |
code #2 for |
    adverse |
    drug #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,992       99.92       99.92
      50410 |          1        0.01       99.93
      52650 |          1        0.01       99.94
      54094 |          1        0.01       99.95
      54960 |          1        0.01       99.96
      55997 |          1        0.01       99.97
      70150 |          1        0.01       99.98
      70341 |          1        0.01       99.99
      80007 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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