Frequencies for first 10,000 rows of nlbnl variable in natl1986 dataset :

 Born alive |
      - now |
     living |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,400       44.00       44.00
          1 |      3,279       32.79       76.79
          2 |      1,485       14.85       91.64
          3 |        501        5.01       96.65
          4 |        155        1.55       98.20
          5 |         87        0.87       99.07
          6 |         41        0.41       99.48
          7 |         16        0.16       99.64
          8 |          8        0.08       99.72
          9 |          6        0.06       99.78
         10 |          1        0.01       99.79
         11 |          3        0.03       99.82
         12 |          1        0.01       99.83
         13 |          1        0.01       99.84
         14 |          1        0.01       99.85
         15 |          1        0.01       99.86
         99 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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