Frequencies for first 10,000 rows of prov3295 variable in pos1993 dataset :

  srv: phys |
extender-on |
   site-non |
        res |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,627       76.27       76.27
          N |      2,359       23.59       99.86
          Y |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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