Frequencies for first 10,000 rows of rx5v3c2 variable in nhamcsed2009 dataset :

   for rx5, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,909       99.09       99.09
        102 |          1        0.01       99.10
        180 |          2        0.02       99.12
        196 |         27        0.27       99.39
        198 |         18        0.18       99.57
        203 |          7        0.07       99.64
        210 |          7        0.07       99.71
        211 |          7        0.07       99.78
        239 |          4        0.04       99.82
        268 |          1        0.01       99.83
        385 |          9        0.09       99.92
        388 |          5        0.05       99.97
        389 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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