Frequencies for first 10,000 rows of rx9cat2 variable in nhamcsed2012 dataset :

   For RX9, |
MULTUM drug |
category #2 |
     - most |
   detailed |
 level (can |
  be either |
 Level 1,2  |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,970       99.70       99.70
        012 |          2        0.02       99.72
        053 |          1        0.01       99.73
        054 |          1        0.01       99.74
        095 |          1        0.01       99.75
        117 |          2        0.02       99.77
        123 |          2        0.02       99.79
        124 |          1        0.01       99.80
        129 |          7        0.07       99.87
        196 |          1        0.01       99.88
        198 |          4        0.04       99.92
        203 |          2        0.02       99.94
        211 |          3        0.03       99.97
        239 |          1        0.01       99.98
        289 |          1        0.01       99.99
        320 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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