Frequencies for first 10,000 rows of prov3470 variable in pos1995 dataset :

       srv: |
vocational- |
onsite-resi |
      dents |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,523       75.23       75.23
          N |      2,319       23.19       98.42
          Y |        158        1.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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