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

  Number of |
Live Births |
   Now Dead |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,856       98.56       98.56
          1 |        130        1.30       99.86
          2 |         12        0.12       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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