Frequencies for minute variable in accident dataset :

    Time of |
Accident-Mi |
       nute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        121       24.90       24.90
          5 |         10        2.06       26.95
         10 |         27        5.56       32.51
         13 |          1        0.21       32.72
         15 |         48        9.88       42.59
         20 |         23        4.73       47.33
         25 |          2        0.41       47.74
         30 |        128       26.34       74.07
         32 |          1        0.21       74.28
         35 |         10        2.06       76.34
         40 |         21        4.32       80.66
         45 |         52       10.70       91.36
         50 |         25        5.14       96.50
         55 |         12        2.47       98.97
         99 |          5        1.03      100.00
------------+-----------------------------------
      Total |        486      100.00

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