Frequencies for first 10,000 rows of nlbnd variable in natl1990 dataset :

  Number of |
Live Births |
   Now Dead |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,808       98.08       98.08
          1 |        133        1.33       99.41
          2 |         13        0.13       99.54
          3 |          2        0.02       99.56
          5 |          1        0.01       99.57
         99 |         43        0.43      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016