Frequencies for first 10,000 rows of drg5ing2 variable in nhamcsed1997 dataset :

 ingredient |
code #2 for |
    drug #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,961       99.61       99.61
      50005 |          1        0.01       99.62
      50728 |          1        0.01       99.63
      51064 |          1        0.01       99.64
      51340 |          3        0.03       99.67
      52023 |          2        0.02       99.69
      52055 |          1        0.01       99.70
      52353 |          1        0.01       99.71
      52490 |          1        0.01       99.72
      52650 |          6        0.06       99.78
      52720 |          3        0.03       99.81
      53445 |          1        0.01       99.82
      53720 |          2        0.02       99.84
      54094 |          2        0.02       99.86
      54595 |          1        0.01       99.87
      54655 |          1        0.01       99.88
      54890 |          3        0.03       99.91
      55590 |          1        0.01       99.92
      55710 |          2        0.02       99.94
      55997 |          4        0.04       99.98
      56194 |          1        0.01       99.99
      56355 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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