Frequencies for first 10,000 rows of rx1v1c4 variable in nhamcsed2013 dataset :

   For RX1, |
 level 1 of |
MULTUM drug |
category #4 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,848       98.48       98.48
        057 |        152        1.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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