Frequencies for first 10,000 rows of prov3555 variable in pos2001 dataset :

    current |
survey ever |
 non-accred |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,741       87.41       87.41
          N |        923        9.23       96.64
          Y |        336        3.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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