Frequencies for first 10,000 rows of prov5940 variable in posclia2010 dataset :

 laboratory |
classificat |
     ion 10 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,956       79.56       79.56
         00 |      2,044       20.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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