Frequencies for first 10,000 rows of dob_wk variable in natl2007 dataset :

Weekday U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,099       10.99       10.99
          2 |      1,399       13.99       24.98
          3 |      1,600       16.00       40.98
          4 |      1,555       15.55       56.53
          5 |      1,564       15.64       72.17
          6 |      1,566       15.66       87.83
          7 |      1,217       12.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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