Frequencies for first 10,000 rows of prov3295 variable in pos1997 dataset :

  srv: phys |
extender-on |
   site-non |
        res |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,410       74.10       74.10
          N |      2,574       25.74       99.84
          Y |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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