Frequencies for first 10,000 rows of prov3425 variable in pos2005 dataset :

       srv: |
dental-onsi |
te-resident |
          s |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,474       74.74       74.74
          N |        727        7.27       82.01
          Y |      1,799       17.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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