Frequencies for first 10,000 rows of mdcr_prtcptn_op_pt_spch_sw variable in pos2018 dataset :

Participati |
on Medicare |
     OPT/SP |
  Indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,855       98.55       98.55
          N |        141        1.41       99.96
          Y |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Feb 2019