Frequencies for first 10,000 rows of rx4v1c1 variable in nhamcsed2013 dataset :

   For RX4, |
 level 1 of |
MULTUM drug |
category #1 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,997       79.97       79.97
        001 |        244        2.44       82.41
        020 |          2        0.02       82.43
        040 |        112        1.12       83.55
        057 |        820        8.20       91.75
        081 |         16        0.16       91.91
        087 |        152        1.52       93.43
        097 |         57        0.57       94.00
        105 |         47        0.47       94.47
        113 |          7        0.07       94.54
        115 |        220        2.20       96.74
        122 |        120        1.20       97.94
        133 |         66        0.66       98.60
        218 |          1        0.01       98.61
        242 |         50        0.50       99.11
        254 |         25        0.25       99.36
        331 |         20        0.20       99.56
        358 |         37        0.37       99.93
        365 |          6        0.06       99.99
        899 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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