Frequencies for first 10,000 rows of apgar5r variable in natl2005 dataset :

Five Minute |
      Apgar |
 Recode U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         35        0.35        0.35
          2 |        100        1.00        1.35
          3 |      1,128       11.28       12.63
          4 |      8,713       87.13       99.76
          5 |         24        0.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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