Frequencies for first 10,000 rows of srvy_ever_acrdtd_sw variable in pos2005 dataset :

    current |
survey ever |
 accredited |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,731       87.31       87.31
          N |        319        3.19       90.50
          Y |        950        9.50      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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