Frequencies for first 10,000 rows of rx7cat2 variable in nhamcsed2011 dataset :

   For RX7, |
MULTUM drug |
category #2 |
     - most |
   detailed |
 level (can |
  be either |
 Level 1,2  |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,955       99.55       99.55
        012 |          1        0.01       99.56
        123 |          6        0.06       99.62
        124 |          2        0.02       99.64
        129 |          3        0.03       99.67
        196 |          3        0.03       99.70
        198 |         10        0.10       99.80
        203 |          3        0.03       99.83
        210 |          1        0.01       99.84
        211 |          4        0.04       99.88
        239 |          1        0.01       99.89
        320 |          1        0.01       99.90
        340 |          2        0.02       99.92
        385 |          5        0.05       99.97
        388 |          2        0.02       99.99
        427 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016