Frequencies for first 10,000 rows of prov3510 variable in pos1996 dataset :

       srv: |
xray-offsit |
e-residents |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,254       72.54       72.54
          N |      2,047       20.47       93.01
          Y |        699        6.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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