Frequencies for first 10,000 rows of drg7ing1 variable in namcs2003 dataset :

 ingredient |
code #1 for |
 medication |
         #7 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,955       99.55       99.55
      50005 |          9        0.09       99.64
      51868 |          1        0.01       99.65
      51910 |          2        0.02       99.67
      52045 |          1        0.01       99.68
      52075 |          1        0.01       99.69
      52354 |          3        0.03       99.72
      52355 |          3        0.03       99.75
      52447 |          1        0.01       99.76
      52490 |          2        0.02       99.78
      52645 |          5        0.05       99.83
      53780 |         10        0.10       99.93
      53805 |          2        0.02       99.95
      55555 |          1        0.01       99.96
      56193 |          1        0.01       99.97
      56345 |          2        0.02       99.99
      70256 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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