Frequencies for first 10,000 rows of apgar10r variable in natl2015 dataset :

 Ten Minute |
      APGAR |
 Recode 1 A |
   score of |
        0-3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         21        0.21        0.21
          2 |         40        0.40        0.61
          3 |         76        0.76        1.37
          4 |         35        0.35        1.72
          5 |      9,828       98.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Oct 2016