Frequencies for first 10,000 rows of ft_srgry_sw variable in pos2012 dataset :

 Specialty: |
       Foot |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,676       16.76       16.76
          N |      8,180       81.80       98.56
          Y |        144        1.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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