Frequencies for first 10,000 rows of prov1985 variable in pos1994 dataset :

        530 |
compatibili |
    ty test |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,798       87.98       87.98
          N |      1,146       11.46       99.44
          Y |         56        0.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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