Frequencies for first 10,000 rows of weekday variable in natl1989 dataset :

Day of Week |
 Child Born |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,186       11.86       11.86
          2 |      1,540       15.40       27.26
          3 |      1,649       16.49       43.75
          4 |      1,518       15.18       58.93
          5 |      1,527       15.27       74.20
          6 |      1,464       14.64       88.84
          7 |      1,116       11.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016