Frequencies for first 10,000 rows of rx21v3c1 variable in nhamcsed2015 dataset 

  For RX21, |
 level 3 of |
MULTUM drug |
category #1 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,986       99.86       99.86
        031 |          1        0.01       99.87
        059 |          1        0.01       99.88
        060 |          1        0.01       99.89
        061 |          1        0.01       99.90
        062 |          1        0.01       99.91
        162 |          1        0.01       99.92
        191 |          1        0.01       99.93
        208 |          1        0.01       99.94
        215 |          3        0.03       99.97
        271 |          1        0.01       99.98
        306 |          1        0.01       99.99
        341 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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