Frequencies for first 10,000 rows of typeofmedicarehealthplan variable in planreport2012 dataset :

       Type of |
      Medicare |
   Health Plan |      Freq.     Percent        Cum.
---------------+-----------------------------------
               |      5,534       55.34       55.34
     Local HMO |      1,191       11.91       67.25
   Local HMO * |        359        3.59       70.84
     Local PPO |        842        8.42       79.26
   Local PPO * |          2        0.02       79.28
          PFFS |        493        4.93       84.21
        PFFS * |        367        3.67       87.88
  Regional PPO |        708        7.08       94.96
Regional PPO * |        504        5.04      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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