Frequencies for first 10,000 rows of weekdayb variable in linkco1991us_num dataset :

Day of Week |
 Child Born |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,290       12.90       12.90
          2 |      1,481       14.81       27.71
          3 |      1,544       15.44       43.15
          4 |      1,468       14.68       57.83
          5 |      1,485       14.85       72.68
          6 |      1,487       14.87       87.55
          7 |      1,245       12.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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