Frequencies for first 10,000 rows of prov5980 variable in posclia2009 dataset :

    pending |
 laboratory |
classificat |
        ion |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,737       87.37       87.37
         00 |      1,263       12.63      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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