Frequencies for first 10,000 rows of prov3535 variable in pos1999 dataset :

       srv: |
housekeepin |
          g |
 onsite-non |
        res |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,387       73.87       73.87
          N |      2,538       25.38       99.25
          Y |         75        0.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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