Frequencies for first 10,000 rows of drg3ing3 variable in nhamcsopd1999 dataset :

 ingredient |
code #3 for |
 medication |
         #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,934       99.34       99.34
      50745 |          3        0.03       99.37
      53175 |          2        0.02       99.39
      54328 |          9        0.09       99.48
      54465 |          5        0.05       99.53
      54480 |          1        0.01       99.54
      54595 |          3        0.03       99.57
      54755 |          1        0.01       99.58
      54995 |          5        0.05       99.63
      55105 |          1        0.01       99.64
      55130 |         20        0.20       99.84
      55240 |          1        0.01       99.85
      55715 |          8        0.08       99.93
      55745 |          1        0.01       99.94
      55770 |          1        0.01       99.95
      56445 |          3        0.03       99.98
      59803 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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