Frequencies for first 10,000 rows of rx4v1c2 variable in nhamcsed2014 dataset :

   For RX4, |
 level 1 of |
MULTUM drug |
category #2 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,560       95.60       95.60
        001 |         37        0.37       95.97
        040 |         57        0.57       96.54
        057 |         83        0.83       97.37
        081 |         28        0.28       97.65
        097 |          3        0.03       97.68
        105 |          4        0.04       97.72
        115 |         16        0.16       97.88
        122 |        193        1.93       99.81
        133 |         12        0.12       99.93
        218 |          1        0.01       99.94
        242 |          3        0.03       99.97
        358 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017