Frequencies for first 10,000 rows of prov3495 variable in pos2005 dataset :

       srv: |
   clinical |
lab-offsite |
  -resident |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,474       74.74       74.74
          N |      1,914       19.14       93.88
          Y |        612        6.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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