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

Five Minute |
Apgar Score |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          5        0.05        0.05
          1 |         29        0.29        0.34
          2 |         10        0.10        0.44
          3 |         11        0.11        0.55
          4 |         15        0.15        0.70
          5 |         28        0.28        0.98
          6 |         56        0.56        1.54
          7 |        123        1.23        2.77
          8 |        709        7.09        9.86
          9 |      6,498       64.98       74.84
         10 |      2,451       24.51       99.35
         99 |         65        0.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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