Frequencies for first 10,000 rows of drg6ing2 variable in nhamcsed1997 dataset :

 ingredient |
code #2 for |
    drug #6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,978       99.78       99.78
      51130 |          1        0.01       99.79
      51340 |          1        0.01       99.80
      51708 |          1        0.01       99.81
      52490 |          1        0.01       99.82
      52645 |          1        0.01       99.83
      52650 |          7        0.07       99.90
      53175 |          1        0.01       99.91
      54094 |          3        0.03       99.94
      54395 |          1        0.01       99.95
      54890 |          1        0.01       99.96
      55925 |          1        0.01       99.97
      55997 |          1        0.01       99.98
      57033 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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