Frequencies for first 10,000 rows of plantype variable in plan2018 dataset :

  Plan Type |      Freq.     Percent        Cum.
------------+-----------------------------------
        EPO |      1,356       13.56       13.56
        HMO |      4,902       49.02       62.58
  Indemnity |         76        0.76       63.34
        POS |        800        8.00       71.34
        PPO |      2,866       28.66      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 23 May 2018