Frequencies for first 10,000 rows of prov3285 variable in pos2009 dataset :

       SRV: |
PHYSICIAN-O |
FFSITE-RESI |
      DENTS |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,657       76.57       76.57
          N |      1,787       17.87       94.44
          Y |        556        5.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016