Frequencies for first 10,000 rows of prov3510 variable in pos1998 dataset :

       srv: |
xray-offsit |
e-residents |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,422       74.22       74.22
          N |      1,947       19.47       93.69
          Y |        631        6.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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