Frequencies for first 10,000 rows of nlbnl variable in natlterr2001 dataset :

  Number of |
Live Births |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,387       43.87       43.87
          1 |      3,401       34.01       77.88
          2 |      1,509       15.09       92.97
          3 |        428        4.28       97.25
          4 |        157        1.57       98.82
          5 |         64        0.64       99.46
          6 |         29        0.29       99.75
          7 |         14        0.14       99.89
          8 |          4        0.04       99.93
          9 |          3        0.03       99.96
         10 |          1        0.01       99.97
         11 |          1        0.01       99.98
         14 |          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