Frequencies for first 10,000 rows of prov3525 variable in pos2004 dataset :

 srv: blood |
admin-offsi |
te-resident |
          s |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,489       74.89       74.89
          N |      2,262       22.62       97.51
          Y |        249        2.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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