Frequencies for first 10,000 rows of vdayr variable in nhamcsed2014 dataset :

Day of Week |
   of Visit |      Freq.     Percent        Cum.
------------+-----------------------------------
     Sunday |      1,356       13.56       13.56
     Monday |      1,621       16.21       29.77
    Tuesday |      1,555       15.55       45.32
  Wednesday |      1,423       14.23       59.55
   Thursday |      1,399       13.99       73.54
     Friday |      1,340       13.40       86.94
   Saturday |      1,306       13.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017