Frequencies for first 10,000 rows of drg3ing3 variable in nhamcsed1995 dataset :

 ingredient |
code #3 for |
    drug #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,956       99.56       99.56
      50637 |          1        0.01       99.57
      50745 |          1        0.01       99.58
      53175 |          3        0.03       99.61
      53895 |          1        0.01       99.62
      54395 |         15        0.15       99.77
      54465 |          5        0.05       99.82
      54595 |          4        0.04       99.86
      54960 |          1        0.01       99.87
      55105 |          2        0.02       99.89
      55240 |          8        0.08       99.97
      55755 |          2        0.02       99.99
      55770 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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