Frequencies for first 10,000 rows of fmaps variable in natl1997 dataset :

Five Minute |
Apgar Score |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          8        0.08        0.08
          1 |         22        0.22        0.30
          2 |         12        0.12        0.42
          3 |          8        0.08        0.50
          4 |         10        0.10        0.60
          5 |         28        0.28        0.88
          6 |         48        0.48        1.36
          7 |        123        1.23        2.59
          8 |        569        5.69        8.28
          9 |      7,884       78.84       87.12
         10 |      1,274       12.74       99.86
         99 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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