Frequencies for first 10,000 rows of prov4880 variable in posclia2008 dataset :

 shared lab |
  indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      4,352       43.52       43.52
          N |      5,514       55.14       98.66
          Y |        134        1.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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