Frequencies for first 10,000 rows of rx4v1c2 variable in nhamcsed2013 dataset :

   For RX4, |
 level 1 of |
MULTUM drug |
category #2 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,573       95.73       95.73
        001 |         37        0.37       96.10
        040 |         58        0.58       96.68
        057 |         78        0.78       97.46
        081 |         17        0.17       97.63
        097 |          1        0.01       97.64
        113 |          2        0.02       97.66
        115 |         17        0.17       97.83
        122 |        205        2.05       99.88
        133 |          5        0.05       99.93
        218 |          1        0.01       99.94
        242 |          5        0.05       99.99
        358 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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