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

    current |
survey ever |
 non-accred |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,839       88.39       88.39
          N |        885        8.85       97.24
          Y |        276        2.76      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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