Frequencies for first 10,000 rows of drg3ing3 variable in nhamcsed1993 dataset :

 ingredient |
code #3 for |
    drug #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,962       99.62       99.62
      50745 |          2        0.02       99.64
      51670 |          1        0.01       99.65
      52035 |          1        0.01       99.66
      53175 |          1        0.01       99.67
      54350 |          1        0.01       99.68
      54395 |          9        0.09       99.77
      54465 |          6        0.06       99.83
      54595 |          5        0.05       99.88
      54960 |          1        0.01       99.89
      54995 |          1        0.01       99.90
      55240 |          9        0.09       99.99
      56300 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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