Frequencies for first 10,000 rows of prov3495 variable in pos2006 dataset :

       srv: |
   clinical |
lab-offsite |
  -resident |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,456       74.56       74.56
          N |      1,916       19.16       93.72
          Y |        628        6.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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