Frequencies for first 10,000 rows of nlbnl variable in natl2000 dataset :

  Number of |
Live Births |
 Now Living |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,198       41.98       41.98
          1 |      3,538       35.38       77.36
          2 |      1,517       15.17       92.53
          3 |        486        4.86       97.39
          4 |        161        1.61       99.00
          5 |         57        0.57       99.57
          6 |         24        0.24       99.81
          7 |         11        0.11       99.92
          8 |          3        0.03       99.95
          9 |          3        0.03       99.98
         10 |          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