Frequencies for first 10,000 rows of prov1985 variable in pos1995 dataset :

        530 |
compatibili |
    ty test |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,884       88.84       88.84
          N |      1,063       10.63       99.47
          Y |         53        0.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016