Frequencies for typeofmedicarehealthplan variable in snp2015 dataset :

     Type of |
    Medicare |
 Health Plan |      Freq.     Percent        Cum.
-------------+-----------------------------------
   Local HMO |      6,084       69.40       69.40
   Local PPO |        663        7.56       76.97
Regional PPO |      2,019       23.03      100.00
-------------+-----------------------------------
       Total |      8,766      100.00

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