Frequencies for first 10,000 rows of nlbnl variable in natl1998 dataset :

  Number of |
Live Births |
 Now Living |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,424       44.24       44.24
          1 |      3,461       34.61       78.85
          2 |      1,402       14.02       92.87
          3 |        454        4.54       97.41
          4 |        139        1.39       98.80
          5 |         64        0.64       99.44
          6 |         26        0.26       99.70
          7 |         13        0.13       99.83
          8 |         10        0.10       99.93
          9 |          4        0.04       99.97
         10 |          1        0.01       99.98
         11 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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