Frequencies for first 10,000 rows of drg6ing2 variable in nhamcsed1996 dataset :

 ingredient |
code #2 for |
    drug #6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,977       99.77       99.77
      50635 |          1        0.01       99.78
      50728 |          3        0.03       99.81
      51340 |          3        0.03       99.84
      52650 |          3        0.03       99.87
      52720 |          1        0.01       99.88
      53175 |          3        0.03       99.91
      53895 |          1        0.01       99.92
      54890 |          1        0.01       99.93
      55925 |          2        0.02       99.95
      55997 |          3        0.03       99.98
      57033 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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