Frequencies for first 10,000 rows of rx2v2c2 variable in nhamcsed2009 dataset :

   for rx2, |
 level 2 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,054       90.54       90.54
        005 |         23        0.23       90.77
        012 |         21        0.21       90.98
        015 |         53        0.53       91.51
        046 |         92        0.92       92.43
        053 |         66        0.66       93.09
        054 |          2        0.02       93.11
        064 |         53        0.53       93.64
        065 |        256        2.56       96.20
        066 |          1        0.01       96.21
        083 |         65        0.65       96.86
        098 |          3        0.03       96.89
        106 |          5        0.05       96.94
        117 |         11        0.11       97.05
        123 |         98        0.98       98.03
        124 |         15        0.15       98.18
        125 |         22        0.22       98.40
        129 |        113        1.13       99.53
        130 |          5        0.05       99.58
        136 |          5        0.05       99.63
        146 |          1        0.01       99.64
        151 |         16        0.16       99.80
        251 |         16        0.16       99.96
        266 |          1        0.01       99.97
        320 |          1        0.01       99.98
        363 |          1        0.01       99.99
        427 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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