Frequencies for first 10,000 rows of prov3295 variable in pos1998 dataset :

  srv: phys |
extender-on |
   site-non |
        res |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,422       74.22       74.22
          N |      2,566       25.66       99.88
          Y |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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