Frequencies for first 10,000 rows of prov2305 variable in pos1999 dataset :

 spec: oral |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,372       93.72       93.72
          N |        454        4.54       98.26
          Y |        174        1.74      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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