Frequencies for first 10,000 rows of prov2305 variable in pos1998 dataset :

 spec: oral |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,416       94.16       94.16
          N |        420        4.20       98.36
          Y |        164        1.64      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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