Frequencies for first 10,000 rows of prov3540 variable in pos1993 dataset :

       srv: |
housekeepin |
g-offsite-r |
         es |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,627       76.27       76.27
          N |      2,322       23.22       99.49
          Y |         51        0.51      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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