Frequencies for first 10,000 rows of nlbnd variable in natl1989 dataset :

  Number of |
Live Births |
   Now Dead |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,805       98.05       98.05
          1 |        150        1.50       99.55
          2 |         17        0.17       99.72
          3 |          1        0.01       99.73
         99 |         27        0.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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