Frequencies for first 10,000 rows of weekday variable in natl1991 dataset :

Day of Week |
 Child Born |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,127       11.27       11.27
          2 |      1,461       14.61       25.88
          3 |      1,612       16.12       42.00
          4 |      1,577       15.77       57.77
          5 |      1,573       15.73       73.50
          6 |      1,525       15.25       88.75
          7 |      1,125       11.25      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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