Frequencies for day variable in accident dataset :

   Accident |
   Date-Day |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         25        4.38        4.38
          2 |         18        3.15        7.53
          3 |         26        4.55       12.08
          4 |         20        3.50       15.59
          5 |         16        2.80       18.39
          6 |         23        4.03       22.42
          7 |         18        3.15       25.57
          8 |         10        1.75       27.32
          9 |         18        3.15       30.47
         10 |         10        1.75       32.22
         11 |         20        3.50       35.73
         12 |         25        4.38       40.11
         13 |         17        2.98       43.08
         14 |         19        3.33       46.41
         15 |         13        2.28       48.69
         16 |         18        3.15       51.84
         17 |         19        3.33       55.17
         18 |         15        2.63       57.79
         19 |         18        3.15       60.95
         20 |         20        3.50       64.45
         21 |         21        3.68       68.13
         22 |         16        2.80       70.93
         23 |         18        3.15       74.08
         24 |         17        2.98       77.06
         25 |         14        2.45       79.51
         26 |         17        2.98       82.49
         27 |         27        4.73       87.22
         28 |         17        2.98       90.19
         29 |         16        2.80       92.99
         30 |         26        4.55       97.55
         31 |         14        2.45      100.00
------------+-----------------------------------
      Total |        571      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016