Frequencies for first 10,000 rows of drg4ing1 variable in nhamcsed1997 dataset :

 ingredient |
code #1 for |
    drug #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,890       98.90       98.90
      50000 |          1        0.01       98.91
      50005 |         58        0.58       99.49
      50145 |          9        0.09       99.58
      50260 |          3        0.03       99.61
      50275 |          1        0.01       99.62
      50325 |          3        0.03       99.65
      50410 |          1        0.01       99.66
      50420 |          2        0.02       99.68
      50450 |          1        0.01       99.69
      51130 |          2        0.02       99.71
      51340 |          1        0.01       99.72
      51675 |          4        0.04       99.76
      51903 |          1        0.01       99.77
      51910 |          3        0.03       99.80
      52490 |          4        0.04       99.84
      52645 |          3        0.03       99.87
      52990 |          1        0.01       99.88
      53160 |          1        0.01       99.89
      53780 |          3        0.03       99.92
      53895 |          3        0.03       99.95
      54655 |          2        0.02       99.97
      55555 |          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