Frequencies for first 10,000 rows of vdayr variable in nhamcsed2008 dataset :

day of week |
   of visit |      Freq.     Percent        Cum.
------------+-----------------------------------
     sunday |      1,480       14.80       14.80
     monday |      1,541       15.41       30.21
    tuesday |      1,414       14.14       44.35
  wednesday |      1,369       13.69       58.04
   thursday |      1,341       13.41       71.45
     friday |      1,379       13.79       85.24
   saturday |      1,476       14.76      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016