Frequencies for day variable in vehnit dataset :

        day |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         38        3.41        3.41
          2 |         39        3.49        6.90
          3 |         51        4.57       11.47
          4 |         29        2.60       14.07
          5 |         40        3.58       17.65
          6 |         31        2.78       20.43
          7 |         46        4.12       24.55
          8 |         39        3.49       28.05
          9 |         44        3.94       31.99
         10 |         48        4.30       36.29
         11 |         25        2.24       38.53
         12 |         23        2.06       40.59
         13 |         31        2.78       43.37
         14 |         35        3.14       46.51
         15 |         40        3.58       50.09
         16 |         50        4.48       54.57
         17 |         31        2.78       57.35
         18 |         39        3.49       60.84
         19 |         36        3.23       64.07
         20 |         31        2.78       66.85
         21 |         27        2.42       69.27
         22 |         40        3.58       72.85
         23 |         43        3.85       76.70
         24 |         38        3.41       80.11
         25 |         29        2.60       82.71
         26 |         51        4.57       87.28
         27 |         31        2.78       90.05
         28 |         36        3.23       93.28
         29 |         23        2.06       95.34
         30 |         34        3.05       98.39
         31 |         18        1.61      100.00
------------+-----------------------------------
      Total |      1,116      100.00

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