Frequencies for first 10,000 rows of nlbnd variable in natl1982 dataset :

 Born alive |
 - now dead |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,717       97.17       97.17
          1 |        242        2.42       99.59
          2 |         31        0.31       99.90
          3 |          3        0.03       99.93
         99 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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