Frequencies for first 10,000 rows of drg5ing2 variable in nhamcsed2000 dataset :

 ingredient |
code #2 for |
    drug #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,957       99.57       99.57
      51340 |          3        0.03       99.60
      51708 |          1        0.01       99.61
      52650 |         11        0.11       99.72
      52720 |          3        0.03       99.75
      52743 |          1        0.01       99.76
      52883 |          1        0.01       99.77
      53050 |          1        0.01       99.78
      53175 |          6        0.06       99.84
      53754 |          1        0.01       99.85
      54094 |          4        0.04       99.89
      54465 |          1        0.01       99.90
      54468 |          1        0.01       99.91
      54890 |          1        0.01       99.92
      55320 |          1        0.01       99.93
      55521 |          1        0.01       99.94
      55997 |          2        0.02       99.96
      56210 |          1        0.01       99.97
      57033 |          2        0.02       99.99
      70027 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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