Frequencies for first 10,000 rows of prov3470 variable in pos1996 dataset :

       srv: |
vocational- |
onsite-resi |
      dents |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,254       72.54       72.54
          N |      2,607       26.07       98.61
          Y |        139        1.39      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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