Frequencies for first 10,000 rows of prov3525 variable in pos2001 dataset :

 srv: blood |
admin-offsi |
te-resident |
          s |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,345       73.45       73.45
          N |      2,403       24.03       97.48
          Y |        252        2.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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