Frequencies for first 10,000 rows of drg6ing1 variable in namcs1998 dataset :

 ingredient |
code #1 for |
 medication |
         #6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,967       99.67       99.67
      50005 |         10        0.10       99.77
      50585 |          1        0.01       99.78
      51200 |          1        0.01       99.79
      51638 |          1        0.01       99.80
      51670 |          1        0.01       99.81
      52070 |          1        0.01       99.82
      52355 |          1        0.01       99.83
      52450 |          1        0.01       99.84
      52630 |          1        0.01       99.85
      52645 |          1        0.01       99.86
      52990 |          2        0.02       99.88
      53255 |          1        0.01       99.89
      53780 |          5        0.05       99.94
      54160 |          1        0.01       99.95
      55555 |          1        0.01       99.96
      56163 |          1        0.01       99.97
      56185 |          2        0.02       99.99
      56345 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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