Frequencies for first 10,000 rows of drg3ing3 variable in nhamcsed2002 dataset :

 ingredient |
code #3 for |
    drug #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,971       99.71       99.71
      50745 |          1        0.01       99.72
      53070 |          1        0.01       99.73
      53175 |          3        0.03       99.76
      55105 |          4        0.04       99.80
      55315 |          1        0.01       99.81
      55480 |          1        0.01       99.82
      57034 |          1        0.01       99.83
      70032 |          1        0.01       99.84
      70120 |          5        0.05       99.89
      70335 |          1        0.01       99.90
      70338 |          1        0.01       99.91
      70362 |          3        0.03       99.94
      70404 |          1        0.01       99.95
      70407 |          2        0.02       99.97
      70433 |          2        0.02       99.99
      70667 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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