Frequencies for first 10,000 rows of oral_srgry_sw variable in pos1995 dataset :

 spec: oral |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,552       95.52       95.52
          N |        319        3.19       98.71
          Y |        129        1.29      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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