Frequencies for first 10,000 rows of prov3470 variable in pos2009 dataset :

       SRV: |
VOCATIONAL- |
ONSITE-RESI |
      DENTS |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,657       76.57       76.57
          N |      2,220       22.20       98.77
          Y |        123        1.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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