Frequencies for first 10,000 rows of vdayr variable in namcs2011 dataset :

Day of Week |
   of Visit |      Freq.     Percent        Cum.
------------+-----------------------------------
     Sunday |         39        0.39        0.39
     Monday |      2,255       22.55       22.94
    Tuesday |      2,140       21.40       44.34
  Wednesday |      1,915       19.15       63.49
   Thursday |      1,979       19.79       83.28
     Friday |      1,538       15.38       98.66
   Saturday |        134        1.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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