Frequencies for first 10,000 rows of rx18v3c1 variable in nhamcsed2015 dataset 

  For RX18, |
 level 3 of |
MULTUM drug |
category #1 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,977       99.77       99.77
        059 |          1        0.01       99.78
        060 |          1        0.01       99.79
        061 |          1        0.01       99.80
        070 |          1        0.01       99.81
        160 |          1        0.01       99.82
        161 |          1        0.01       99.83
        169 |          1        0.01       99.84
        173 |          2        0.02       99.86
        180 |          2        0.02       99.88
        182 |          1        0.01       99.89
        191 |          1        0.01       99.90
        195 |          2        0.02       99.92
        199 |          1        0.01       99.93
        215 |          2        0.02       99.95
        225 |          1        0.01       99.96
        245 |          1        0.01       99.97
        274 |          1        0.01       99.98
        306 |          1        0.01       99.99
        371 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017