Frequencies for first 10,000 rows of drg6ing5 variable in namcs2002 dataset :

 Ingredient |
code #5 for |
 medication |
         #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,997       99.97       99.97
      56195 |          2        0.02       99.99
      70156 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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