Frequencies for first 10,000 rows of ufagecomb variable in natlterr2012 dataset :

   Father's |
   Combined |
    Age U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 5 May 2016