Frequencies for first 10,000 rows of drg6ing2 variable in nhamcsopd1999 dataset :

 ingredient |
code #2 for |
 medication |
         #6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,980       99.80       99.80
      52650 |          2        0.02       99.82
      52883 |          1        0.01       99.83
      53175 |          1        0.01       99.84
      53280 |          2        0.02       99.86
      54094 |          2        0.02       99.88
      54395 |          1        0.01       99.89
      54465 |          1        0.01       99.90
      54890 |          1        0.01       99.91
      55925 |          3        0.03       99.94
      55997 |          1        0.01       99.95
      56285 |          2        0.02       99.97
      57146 |          1        0.01       99.98
      59645 |          1        0.01       99.99
      91011 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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