Frequencies for first 10,000 rows of drg6ing3 variable in nhamcsopd1996 dataset :

 ingredient |
code #3 for |
 medication |
         #6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,992       99.92       99.92
      50745 |          2        0.02       99.94
      52990 |          1        0.01       99.95
      54595 |          1        0.01       99.96
      54995 |          1        0.01       99.97
      55105 |          1        0.01       99.98
      55240 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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