Frequencies for minute variable in accident dataset :

    Time of |
Accident-Mi |
       nute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        130       22.77       22.77
          5 |         18        3.15       25.92
         10 |         40        7.01       32.92
         14 |          2        0.35       33.27
         15 |         67       11.73       45.01
         20 |         22        3.85       48.86
         25 |          6        1.05       49.91
         30 |        147       25.74       75.66
         35 |          8        1.40       77.06
         38 |          1        0.18       77.23
         40 |         24        4.20       81.44
         45 |         64       11.21       92.64
         47 |          1        0.18       92.82
         50 |         32        5.60       98.42
         55 |          9        1.58      100.00
------------+-----------------------------------
      Total |        571      100.00

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