Frequencies for first 10,000 rows of typeofmedicarehealthplan variable in planreport2013 dataset :

       Type of |
      Medicare |
   Health Plan |      Freq.     Percent        Cum.
---------------+-----------------------------------
               |      5,669       56.69       56.69
     Local HMO |      1,088       10.88       67.57
   Local HMO * |        347        3.47       71.04
     Local PPO |        847        8.47       79.51
   Local PPO * |          1        0.01       79.52
          PFFS |        496        4.96       84.48
        PFFS * |        363        3.63       88.11
  Regional PPO |        715        7.15       95.26
Regional PPO * |        474        4.74      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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