Frequencies for first 10,000 rows of drg6ing1 variable in nhamcsed1996 dataset :

 ingredient |
code #1 for |
    drug #6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,976       99.76       99.76
      50005 |          9        0.09       99.85
      50145 |          3        0.03       99.88
      50260 |          2        0.02       99.90
      50410 |          1        0.01       99.91
      50420 |          1        0.01       99.92
      50632 |          1        0.01       99.93
      52645 |          2        0.02       99.95
      52655 |          1        0.01       99.96
      53780 |          1        0.01       99.97
      55555 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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