Frequencies for first 10,000 rows of rx23v1c1 variable in nhamcsed2015 dataset 

  For RX23, |
 level 1 of |
MULTUM drug |
category #1 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,980       99.80       99.80
        001 |          1        0.01       99.81
        040 |          2        0.02       99.83
        057 |          4        0.04       99.87
        087 |          4        0.04       99.91
        113 |          2        0.02       99.93
        115 |          2        0.02       99.95
        122 |          1        0.01       99.96
        153 |          1        0.01       99.97
        242 |          1        0.01       99.98
        331 |          1        0.01       99.99
        358 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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