Frequencies for first 10,000 rows of drg3ing3 variable in nhamcsopd1993 dataset :

 ingredient |
code #3 for |
 medication |
         #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,969       99.69       99.69
      53175 |          2        0.02       99.71
      53915 |          1        0.01       99.72
      54310 |          1        0.01       99.73
      54330 |          1        0.01       99.74
      54350 |          1        0.01       99.75
      54395 |          2        0.02       99.77
      54455 |          1        0.01       99.78
      54465 |          3        0.03       99.81
      54595 |          2        0.02       99.83
      54990 |          1        0.01       99.84
      54995 |          2        0.02       99.86
      55130 |          8        0.08       99.94
      55240 |          4        0.04       99.98
      57028 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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