Frequencies for first 10,000 rows of ft_srgry_sw variable in pos2005 dataset :

 spec: foot |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,323       93.23       93.23
          N |        391        3.91       97.14
          Y |        286        2.86      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017