Frequencies for first 10,000 rows of rx9cat2 variable in nhamcsed2013 dataset :

   For RX9, |
MULTUM drug |
category #2 |
     - most |
   detailed |
 level (can |
  be either |
 Level 1,2  |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,975       99.75       99.75
        012 |          2        0.02       99.77
        015 |          3        0.03       99.80
        053 |          1        0.01       99.81
        095 |          1        0.01       99.82
        117 |          1        0.01       99.83
        123 |          2        0.02       99.85
        129 |          6        0.06       99.91
        196 |          1        0.01       99.92
        211 |          2        0.02       99.94
        320 |          1        0.01       99.95
        385 |          4        0.04       99.99
        388 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016