Frequencies for typeofmedicarehealthplan variable in snp2013 dataset :

     Type of |
    Medicare |
 Health Plan |      Freq.     Percent        Cum.
-------------+-----------------------------------
             |          1        0.01        0.01
   Local HMO |      5,492       46.22       46.23
   Local PPO |      3,139       26.42       72.65
Regional PPO |      3,250       27.35      100.00
-------------+-----------------------------------
       Total |     11,882      100.00

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