Frequencies for first 10,000 rows of drg1ing5 variable in namcs1996 dataset :

 ingredient |
code #5 for |
 medication |
         #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,931       99.31       99.31
      54440 |          1        0.01       99.32
      54995 |          1        0.01       99.33
      55273 |          1        0.01       99.34
      55348 |          7        0.07       99.41
      55355 |          1        0.01       99.42
      55770 |          1        0.01       99.43
      55893 |          1        0.01       99.44
      56185 |         51        0.51       99.95
      56192 |          2        0.02       99.97
      56193 |          1        0.01       99.98
      56195 |          1        0.01       99.99
      56265 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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