Frequencies for first 10,000 rows of prov3555 variable in pos2006 dataset :

    current |
survey ever |
 non-accred |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,710       87.10       87.10
          N |        948        9.48       96.58
          Y |        342        3.42      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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