Frequencies for first 10,000 rows of fmaps variable in natlterr1998 dataset :

Five Minute |
Apgar Score |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         21        0.21        0.21
          1 |         10        0.10        0.31
          2 |          6        0.06        0.37
          3 |          5        0.05        0.42
          4 |         13        0.13        0.55
          5 |         25        0.25        0.80
          6 |         36        0.36        1.16
          7 |         99        0.99        2.15
          8 |        459        4.59        6.74
          9 |      8,644       86.44       93.18
         10 |        670        6.70       99.88
         99 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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