Frequencies for first 10,000 rows of prov1995 variable in pos1995 dataset :

        600 |
  pathology |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,884       88.84       88.84
          N |        919        9.19       98.03
          Y |        197        1.97      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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