Frequencies for first 10,000 rows of fmaps variable in natl1999 dataset :

Five Minute |
Apgar Score |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          5        0.05        0.05
          1 |         19        0.19        0.24
          2 |         14        0.14        0.38
          3 |         10        0.10        0.48
          4 |         16        0.16        0.64
          5 |         28        0.28        0.92
          6 |         54        0.54        1.46
          7 |        122        1.22        2.68
          8 |        572        5.72        8.40
          9 |      7,918       79.18       87.58
         10 |      1,228       12.28       99.86
         99 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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