Frequencies for first 10,000 rows of rx4v1c1 variable in nhamcsed2011 dataset :

   For RX4, |
 level 1 of |
MULTUM drug |
category #1 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,354       83.54       83.54
        001 |        225        2.25       85.79
        028 |          1        0.01       85.80
        040 |         96        0.96       86.76
        057 |        694        6.94       93.70
        081 |         20        0.20       93.90
        087 |        127        1.27       95.17
        097 |         67        0.67       95.84
        105 |         33        0.33       96.17
        113 |          3        0.03       96.20
        115 |        130        1.30       97.50
        122 |        102        1.02       98.52
        133 |         47        0.47       98.99
        218 |          3        0.03       99.02
        242 |         32        0.32       99.34
        254 |         16        0.16       99.50
        331 |          6        0.06       99.56
        358 |         35        0.35       99.91
        365 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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