Frequencies for first 10,000 rows of drg5ing2 variable in namcs2001 dataset :

 ingredient |
code #2 for |
 medication |
         #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,950       99.50       99.50
      50728 |          1        0.01       99.51
      51340 |          1        0.01       99.52
      51817 |          1        0.01       99.53
      52080 |          1        0.01       99.54
      52395 |          1        0.01       99.55
      52490 |          1        0.01       99.56
      52650 |          2        0.02       99.58
      52885 |          1        0.01       99.59
      53280 |          3        0.03       99.62
      53670 |          2        0.02       99.64
      53754 |          1        0.01       99.65
      53820 |          1        0.01       99.66
      53895 |          1        0.01       99.67
      54094 |          1        0.01       99.68
      54960 |          1        0.01       99.69
      54990 |          1        0.01       99.70
      55320 |          1        0.01       99.71
      55925 |          3        0.03       99.74
      55997 |          1        0.01       99.75
      56194 |          2        0.02       99.77
      56195 |          2        0.02       99.79
      56355 |          3        0.03       99.82
      57136 |          4        0.04       99.86
      57192 |          1        0.01       99.87
      57208 |          1        0.01       99.88
      70027 |          2        0.02       99.90
      70150 |          4        0.04       99.94
      70330 |          1        0.01       99.95
      70341 |          2        0.02       99.97
      70359 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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