Frequencies for first 10,000 rows of minute variable in accident dataset :

    Time of |
Accident-Mi |
       nute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        884        8.84        8.84
          1 |         76        0.76        9.60
          2 |         61        0.61       10.21
          3 |         62        0.62       10.83
          4 |         60        0.60       11.43
          5 |        444        4.44       15.87
          6 |         52        0.52       16.39
          7 |         68        0.68       17.07
          8 |         64        0.64       17.71
          9 |         48        0.48       18.19
         10 |        533        5.33       23.52
         11 |         41        0.41       23.93
         12 |         68        0.68       24.61
         13 |         62        0.62       25.23
         14 |         57        0.57       25.80
         15 |        705        7.05       32.85
         16 |         44        0.44       33.29
         17 |         65        0.65       33.94
         18 |         75        0.75       34.69
         19 |         44        0.44       35.13
         20 |        588        5.88       41.01
         21 |         36        0.36       41.37
         22 |         53        0.53       41.90
         23 |         49        0.49       42.39
         24 |         49        0.49       42.88
         25 |        458        4.58       47.46
         26 |         50        0.50       47.96
         27 |         62        0.62       48.58
         28 |         59        0.59       49.17
         29 |         44        0.44       49.61
         30 |        968        9.68       59.29
         31 |         44        0.44       59.73
         32 |         63        0.63       60.36
         33 |         60        0.60       60.96
         34 |         58        0.58       61.54
         35 |        441        4.41       65.95
         36 |         62        0.62       66.57
         37 |         45        0.45       67.02
         38 |         65        0.65       67.67
         39 |         46        0.46       68.13
         40 |        566        5.66       73.79
         41 |         37        0.37       74.16
         42 |         68        0.68       74.84
         43 |         61        0.61       75.45
         44 |         48        0.48       75.93
         45 |        664        6.64       82.57
         46 |         40        0.40       82.97
         47 |         70        0.70       83.67
         48 |         67        0.67       84.34
         49 |         45        0.45       84.79
         50 |        608        6.08       90.87
         51 |         30        0.30       91.17
         52 |         59        0.59       91.76
         53 |         53        0.53       92.29
         54 |         52        0.52       92.81
         55 |        413        4.13       96.94
         56 |         43        0.43       97.37
         57 |         66        0.66       98.03
         58 |         61        0.61       98.64
         59 |         40        0.40       99.04
         99 |         96        0.96      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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