Frequencies for first 10,000 rows of nlbnl variable in natl1997 dataset :

  Number of |
Live Births |
 Now Living |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,427       44.27       44.27
          1 |      3,409       34.09       78.36
          2 |      1,499       14.99       93.35
          3 |        449        4.49       97.84
          4 |        137        1.37       99.21
          5 |         46        0.46       99.67
          6 |         20        0.20       99.87
          7 |          6        0.06       99.93
          8 |          2        0.02       99.95
          9 |          2        0.02       99.97
         13 |          1        0.01       99.98
         99 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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