Frequencies for first 10,000 rows of apgar5r variable in natlterr2005 dataset :

Five Minute |
      Apgar |
 Recode U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         21        0.21        0.21
          2 |         51        0.51        0.72
          3 |        674        6.74        7.46
          4 |      7,504       75.04       82.50
          5 |      1,750       17.50      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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