Frequencies for first 10,000 rows of rx4v1c2 variable in nhamcsed2015 dataset :

   For RX4, |
 level 1 of |
MULTUM drug |
category #2 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,511       95.11       95.11
        001 |         36        0.36       95.47
        040 |         61        0.61       96.08
        057 |         77        0.77       96.85
        081 |         31        0.31       97.16
        097 |          5        0.05       97.21
        105 |          5        0.05       97.26
        113 |          1        0.01       97.27
        115 |         16        0.16       97.43
        122 |        240        2.40       99.83
        133 |         10        0.10       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 , 20 Nov 2017