Frequencies for first 10,000 rows of prov5985 variable in posclia2006 dataset :

 laboratory |
classificat |
      ion 5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      5,210       52.10       52.10
         00 |      4,790       47.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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