Frequencies for first 10,000 rows of drg2ing5 variable in nhamcsopd1996 dataset :

 ingredient |
code #5 for |
 medication |
         #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,946       99.46       99.46
      54305 |          1        0.01       99.47
      54995 |          1        0.01       99.48
      55348 |          7        0.07       99.55
      55755 |         10        0.10       99.65
      56185 |         28        0.28       99.93
      56192 |          1        0.01       99.94
      56193 |          3        0.03       99.97
      56195 |          1        0.01       99.98
      56265 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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