Frequencies for first 10,000 rows of drg5ing2 variable in nhamcsed1996 dataset :

 ingredient |
code #2 for |
    drug #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,950       99.50       99.50
      50575 |          1        0.01       99.51
      50728 |          2        0.02       99.53
      51175 |          1        0.01       99.54
      51340 |          6        0.06       99.60
      51708 |          1        0.01       99.61
      52023 |          1        0.01       99.62
      52650 |          7        0.07       99.69
      53050 |          1        0.01       99.70
      53175 |          9        0.09       99.79
      53780 |          1        0.01       99.80
      54094 |          6        0.06       99.86
      54385 |          1        0.01       99.87
      54455 |          1        0.01       99.88
      54860 |          1        0.01       99.89
      54960 |          1        0.01       99.90
      55925 |          3        0.03       99.93
      55997 |          5        0.05       99.98
      57033 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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