Frequencies for first 10,000 rows of srvy_ever_acrdtd_sw variable in pos1994 dataset :

    current |
survey ever |
 accredited |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,839       88.39       88.39
          N |        273        2.73       91.12
          Y |        888        8.88      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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