Frequencies for first 10,000 rows of prov3495 variable in pos1994 dataset :

       srv: |
   clinical |
lab-offsite |
  -resident |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,565       75.65       75.65
          N |      1,837       18.37       94.02
          Y |        598        5.98      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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