Frequencies for typeofmedicarehealthplan variable in snp2012 dataset :

     Type of |
    Medicare |
 Health Plan |      Freq.     Percent        Cum.
-------------+-----------------------------------
   Local HMO |      4,856       65.84       65.84
   Local PPO |        643        8.72       74.56
Regional PPO |      1,876       25.44      100.00
-------------+-----------------------------------
       Total |      7,375      100.00

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