Frequencies for first 10,000 rows of drugbenefittypedetail variable in maa_to_m2009 dataset :

       Drug |
    Benefit |
Type Detail |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      4,511       45.11       45.11
         BA |      1,278       12.78       57.89
         DS |         95        0.95       58.84
         EA |      4,116       41.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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