Frequencies for first 10,000 rows of nlbnl variable in natl1987 dataset :

 Born alive |
      - now |
     living |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,483       44.83       44.83
          1 |      3,267       32.67       77.50
          2 |      1,458       14.58       92.08
          3 |        463        4.63       96.71
          4 |        164        1.64       98.35
          5 |         79        0.79       99.14
          6 |         42        0.42       99.56
          7 |         21        0.21       99.77
          8 |          5        0.05       99.82
          9 |          5        0.05       99.87
         10 |          2        0.02       99.89
         13 |          1        0.01       99.90
         14 |          1        0.01       99.91
         16 |          1        0.01       99.92
         99 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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