Frequencies for first 10,000 rows of apgar5r variable in natlterr2003 dataset :

Five Minute |
      Apgar |
 Recode U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         27        0.27        0.27
          2 |         62        0.62        0.89
          3 |        513        5.13        6.02
          4 |      9,393       93.93       99.95
          5 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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