Frequencies for first 10,000 rows of nlbnl variable in natlterr2000 dataset :

  Number of |
Live Births |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,347       43.47       43.47
          1 |      3,276       32.76       76.23
          2 |      1,569       15.69       91.92
          3 |        467        4.67       96.59
          4 |        197        1.97       98.56
          5 |         78        0.78       99.34
          6 |         27        0.27       99.61
          7 |         21        0.21       99.82
          8 |          8        0.08       99.90
          9 |          3        0.03       99.93
         10 |          2        0.02       99.95
         11 |          2        0.02       99.97
         12 |          1        0.01       99.98
         13 |          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