Frequencies for first 10,000 rows of drugbenefittypedetail variable in ma2015 dataset :

       Drug |
    Benefit |
Type Detail |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,634       26.34       26.34
         AE |         20        0.20       26.54
         BA |      2,567       25.67       52.21
         DS |        447        4.47       56.68
         EA |      4,332       43.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 14 Apr 2016