Frequencies for first 10,000 rows of srvy_ever_acrdtd_sw variable in pos2008 dataset :

    current |
survey ever |
 accredited |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,666       86.66       86.66
          N |        373        3.73       90.39
          Y |        961        9.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017