Frequencies for first 10,000 rows of fmaps variable in natl1992 dataset :

Five Minute |
Apgar Score |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          9        0.09        0.09
          1 |         20        0.20        0.29
          2 |          9        0.09        0.38
          3 |         10        0.10        0.48
          4 |         12        0.12        0.60
          5 |         26        0.26        0.86
          6 |         49        0.49        1.35
          7 |        138        1.38        2.73
          8 |        595        5.95        8.68
          9 |      7,477       74.77       83.45
         10 |      1,614       16.14       99.59
         99 |         41        0.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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