Frequencies for first 10,000 rows of vdayr variable in nhamcsed2010 dataset :

Day of Week |
   of Visit |      Freq.     Percent        Cum.
------------+-----------------------------------
     sunday |      1,440       14.40       14.40
     monday |      1,540       15.40       29.80
    tuesday |      1,428       14.28       44.08
  wednesday |      1,424       14.24       58.32
   thursday |      1,371       13.71       72.03
     friday |      1,377       13.77       85.80
   saturday |      1,420       14.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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