Frequencies for first 10,000 rows of srvy_ever_nacrdtd_sw variable in pos1992 dataset :

    current |
survey ever |
 non-accred |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,738       87.38       87.38
          N |        960        9.60       96.98
          Y |        302        3.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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