Frequencies for first 10,000 rows of prov3495 variable in pos1998 dataset :

       srv: |
   clinical |
lab-offsite |
  -resident |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,422       74.22       74.22
          N |      1,969       19.69       93.91
          Y |        609        6.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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