Frequencies for first 10,000 rows of prov3555 variable in pos1996 dataset :

    current |
survey ever |
 non-accred |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,690       86.90       86.90
          N |        976        9.76       96.66
          Y |        334        3.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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