Frequencies for first 10,000 rows of prov3525 variable in pos2003 dataset :

 srv: blood |
admin-offsi |
te-resident |
          s |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,305       73.05       73.05
          N |      2,436       24.36       97.41
          Y |        259        2.59      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017