Frequencies for first 10,000 rows of prov2305 variable in pos2006 dataset :

 spec: oral |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,531       95.31       95.31
          N |        337        3.37       98.68
          Y |        132        1.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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