Frequencies for first 10,000 rows of vdayr variable in namcs2009 dataset :

day of week |
   of visit |      Freq.     Percent        Cum.
------------+-----------------------------------
     sunday |         31        0.31        0.31
     monday |      2,153       21.53       21.84
    tuesday |      2,172       21.72       43.56
  wednesday |      1,992       19.92       63.48
   thursday |      1,821       18.21       81.69
     friday |      1,665       16.65       98.34
   saturday |        166        1.66      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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