Frequencies for first 10,000 rows of nlbnl variable in natl1999 dataset :

  Number of |
Live Births |
 Now Living |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,309       43.09       43.09
          1 |      3,436       34.36       77.45
          2 |      1,546       15.46       92.91
          3 |        479        4.79       97.70
          4 |        151        1.51       99.21
          5 |         51        0.51       99.72
          6 |         14        0.14       99.86
          7 |          6        0.06       99.92
          8 |          6        0.06       99.98
          9 |          1        0.01       99.99
         99 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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