Frequencies for first 10,000 rows of vdayr variable in namcs2013 dataset :

Day of week |
   of visit |      Freq.     Percent        Cum.
------------+-----------------------------------
     Sunday |         34        0.34        0.34
     Monday |      2,396       23.96       24.30
    Tuesday |      2,182       21.82       46.12
  Wednesday |      2,118       21.18       67.30
   Thursday |      1,823       18.23       85.53
     Friday |      1,311       13.11       98.64
   Saturday |        136        1.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017