Frequencies for first 10,000 rows of srvy_ever_nacrdtd_sw variable in pos2011 dataset :

    Current |
Survey Ever |
Non-Accredi |
        ted |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          2        0.02        0.02
          N |      9,597       95.97       95.99
          Y |        401        4.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Apr 2019