Frequencies for first 10,000 rows of nlbnl variable in natl1985 dataset :

 Born alive |
      - now |
     living |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,511       45.11       45.11
          1 |      3,275       32.75       77.86
          2 |      1,405       14.05       91.91
          3 |        464        4.64       96.55
          4 |        187        1.87       98.42
          5 |         80        0.80       99.22
          6 |         31        0.31       99.53
          7 |         18        0.18       99.71
          8 |          8        0.08       99.79
          9 |          3        0.03       99.82
         10 |          5        0.05       99.87
         12 |          2        0.02       99.89
         13 |          1        0.01       99.90
         15 |          1        0.01       99.91
         99 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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