Frequencies for first 10,000 rows of drg6ing2 variable in nhamcsed2002 dataset :

 ingredient |
code #2 for |
    drug #6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,967       99.67       99.67
      50728 |          3        0.03       99.70
      51340 |          1        0.01       99.71
      52045 |          1        0.01       99.72
      54330 |          1        0.01       99.73
      55105 |          1        0.01       99.74
      55160 |          1        0.01       99.75
      55997 |          2        0.02       99.77
      57192 |          1        0.01       99.78
      59728 |          2        0.02       99.80
      70120 |          1        0.01       99.81
      70150 |          1        0.01       99.82
      70216 |          1        0.01       99.83
      70217 |          8        0.08       99.91
      70231 |          1        0.01       99.92
      70254 |          1        0.01       99.93
      70269 |          2        0.02       99.95
      70332 |          1        0.01       99.96
      70359 |          2        0.02       99.98
      70605 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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