Frequencies for first 10,000 rows of prov3480 variable in pos2007 dataset :

       srv: |
vocational- |
offsite-res |
     idents |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,522       75.22       75.22
          N |      2,334       23.34       98.56
          Y |        144        1.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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