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

  Services: |
  Physician |
   Extender |
    On-Site |
    Nonresi |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,570       75.70       75.70
          N |      2,419       24.19       99.89
          Y |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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