Frequencies for first 10,000 rows of weekday variable in natl1993 dataset :

Day of Week |
 Child Born |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,173       11.73       11.73
          2 |      1,501       15.01       26.74
          3 |      1,567       15.67       42.41
          4 |      1,519       15.19       57.60
          5 |      1,566       15.66       73.26
          6 |      1,552       15.52       88.78
          7 |      1,122       11.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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