Frequencies for first 10,000 rows of prov1865 variable in pos1995 dataset :

        010 |
histocompat |
    ibility |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,884       88.84       88.84
          N |      1,084       10.84       99.68
          Y |         32        0.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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