Frequencies for first 10,000 rows of apgar5r variable in natl2003 dataset :

Five Minute |
      Apgar |
 Recode U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         24        0.24        0.24
          2 |        112        1.12        1.36
          3 |      1,142       11.42       12.78
          4 |      8,574       85.74       98.52
          5 |        148        1.48      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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