Frequencies for first 10,000 rows of rx21v2c1 variable in nhamcsed2015 dataset 

  For RX21, |
 level 2 of |
MULTUM drug |
category #1 |
(intermedia |
  te level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,976       99.76       99.76
        009 |          1        0.01       99.77
        043 |          1        0.01       99.78
        048 |          1        0.01       99.79
        058 |          5        0.05       99.84
        088 |          1        0.01       99.85
        095 |          1        0.01       99.86
        099 |          4        0.04       99.90
        117 |          1        0.01       99.91
        123 |          1        0.01       99.92
        249 |          2        0.02       99.94
        251 |          1        0.01       99.95
        272 |          2        0.02       99.97
        293 |          1        0.01       99.98
        437 |          1        0.01       99.99
        999 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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