Frequencies for first 10,000 rows of rx5v1c3 variable in nhamcsed2015 dataset :

   For RX5, |
 level 1 of |
MULTUM drug |
category #3 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,945       99.45       99.45
        040 |          5        0.05       99.50
        057 |         48        0.48       99.98
        113 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017