Frequencies for first 10,000 rows of drg4ing3 variable in namcs2005 dataset :

 ingredient |
code #3 for |
 medication |
         #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,942       99.42       99.42
      50745 |          3        0.03       99.45
      51075 |          1        0.01       99.46
      52908 |          3        0.03       99.49
      54990 |          1        0.01       99.50
      55105 |          9        0.09       99.59
      55130 |          7        0.07       99.66
      55710 |          3        0.03       99.69
      55755 |          2        0.02       99.71
      56193 |          2        0.02       99.73
      56340 |          5        0.05       99.78
      56585 |          1        0.01       99.79
      70054 |          1        0.01       99.80
      70217 |          1        0.01       99.81
      70256 |          2        0.02       99.83
      70259 |          2        0.02       99.85
      70325 |          1        0.01       99.86
      70338 |          1        0.01       99.87
      70358 |          4        0.04       99.91
      70626 |          6        0.06       99.97
      70697 |          1        0.01       99.98
      70707 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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