Frequencies for first 10,000 rows of priorlive variable in natlterr2003 dataset :

      Prior |
 Births Now |
 Living U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,459       44.59       44.59
          1 |      3,374       33.74       78.33
          2 |      1,529       15.29       93.62
          3 |        407        4.07       97.69
          4 |        135        1.35       99.04
          5 |         52        0.52       99.56
          6 |         22        0.22       99.78
          7 |         14        0.14       99.92
          8 |          4        0.04       99.96
          9 |          2        0.02       99.98
         10 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015