Frequencies for first 10,000 rows of drg5ing2 variable in nhamcsed1998 dataset :

 ingredient |
code #2 for |
    drug #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,968       99.68       99.68
      52650 |          9        0.09       99.77
      52720 |          2        0.02       99.79
      52825 |          1        0.01       99.80
      52883 |          1        0.01       99.81
      53175 |          7        0.07       99.88
      53325 |          1        0.01       99.89
      53895 |          2        0.02       99.91
      54094 |          3        0.03       99.94
      54238 |          1        0.01       99.95
      54455 |          1        0.01       99.96
      54890 |          1        0.01       99.97
      55590 |          1        0.01       99.98
      55997 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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