Frequencies for first 10,000 rows of prov3510 variable in pos2008 dataset :

       srv: |
xray-offsit |
e-residents |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,661       76.61       76.61
          N |      1,725       17.25       93.86
          Y |        614        6.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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