Frequencies for first 10,000 rows of drg3ing3 variable in nhamcsopd2001 dataset :

 ingredient |
code #3 for |
 medication |
         #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,951       99.51       99.51
      50745 |          3        0.03       99.54
      53175 |          1        0.01       99.55
      53780 |          2        0.02       99.57
      54328 |          8        0.08       99.65
      54465 |          1        0.01       99.66
      54923 |          1        0.01       99.67
      54960 |          1        0.01       99.68
      55105 |          3        0.03       99.71
      55130 |         14        0.14       99.85
      55240 |          1        0.01       99.86
      56192 |          1        0.01       99.87
      56265 |          1        0.01       99.88
      59803 |         11        0.11       99.99
      80009 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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