Frequencies for first 10,000 rows of omaps variable in natl1985 dataset :

 One Minute |
Apgar Score |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         11        0.11        0.11
          1 |         58        0.58        0.69
          2 |         76        0.76        1.45
          3 |         83        0.83        2.28
          4 |        118        1.18        3.46
          5 |        161        1.61        5.07
          6 |        279        2.79        7.86
          7 |        744        7.44       15.30
          8 |      3,113       31.13       46.43
          9 |      4,953       49.53       95.96
         10 |        347        3.47       99.43
         99 |         57        0.57      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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