Frequencies for first 10,000 rows of prov5980 variable in pos2010 dataset :

    PENDING |
 LABORATORY |
CLASSIFICAT |
        ION |      Freq.     Percent        Cum.
------------+-----------------------------------
            |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017