Frequencies for first 10,000 rows of drg5ing2 variable in nhamcsed2001 dataset :

 ingredient |
code #2 for |
    drug #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,953       99.53       99.53
      50728 |          2        0.02       99.55
      51340 |          1        0.01       99.56
      52490 |          1        0.01       99.57
      52650 |         17        0.17       99.74
      53175 |          5        0.05       99.79
      54094 |          4        0.04       99.83
      54395 |          1        0.01       99.84
      54465 |          2        0.02       99.86
      55710 |          1        0.01       99.87
      56210 |          1        0.01       99.88
      56355 |          1        0.01       99.89
      59640 |          1        0.01       99.90
      59728 |          1        0.01       99.91
      70150 |          3        0.03       99.94
      70341 |          3        0.03       99.97
      70359 |          2        0.02       99.99
      70403 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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