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

Weekday U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,104       11.04       11.04
          2 |      1,396       13.96       25.00
          3 |      1,564       15.64       40.64
          4 |      1,592       15.92       56.56
          5 |      1,659       16.59       73.15
          6 |      1,505       15.05       88.20
          7 |      1,180       11.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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