Frequencies for first 10,000 rows of rx5v1c2 variable in nhamcsopd2007 dataset :

   for rx5, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,787       97.87       97.87
        001 |         10        0.10       97.97
        020 |          1        0.01       97.98
        040 |         10        0.10       98.08
        057 |         42        0.42       98.50
        081 |         71        0.71       99.21
        097 |         11        0.11       99.32
        105 |         20        0.20       99.52
        115 |         10        0.10       99.62
        122 |         19        0.19       99.81
        133 |          6        0.06       99.87
        242 |          3        0.03       99.90
        254 |          1        0.01       99.91
        358 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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