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

    Time of |
Accident-Mi |
       nute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        898        8.98        8.98
          1 |         62        0.62        9.60
          2 |         73        0.73       10.33
          3 |         62        0.62       10.95
          4 |         65        0.65       11.60
          5 |        420        4.20       15.80
          6 |         48        0.48       16.28
          7 |         62        0.62       16.90
          8 |         66        0.66       17.56
          9 |         59        0.59       18.15
         10 |        555        5.55       23.70
         11 |         51        0.51       24.21
         12 |         56        0.56       24.77
         13 |         57        0.57       25.34
         14 |         45        0.45       25.79
         15 |        702        7.02       32.81
         16 |         42        0.42       33.23
         17 |         67        0.67       33.90
         18 |         63        0.63       34.53
         19 |         46        0.46       34.99
         20 |        606        6.06       41.05
         21 |         35        0.35       41.40
         22 |         63        0.63       42.03
         23 |         67        0.67       42.70
         24 |         57        0.57       43.27
         25 |        455        4.55       47.82
         26 |         49        0.49       48.31
         27 |         56        0.56       48.87
         28 |         55        0.55       49.42
         29 |         48        0.48       49.90
         30 |        916        9.16       59.06
         31 |         36        0.36       59.42
         32 |         55        0.55       59.97
         33 |         60        0.60       60.57
         34 |         55        0.55       61.12
         35 |        413        4.13       65.25
         36 |         50        0.50       65.75
         37 |         47        0.47       66.22
         38 |         70        0.70       66.92
         39 |         64        0.64       67.56
         40 |        508        5.08       72.64
         41 |         48        0.48       73.12
         42 |         66        0.66       73.78
         43 |         48        0.48       74.26
         44 |         60        0.60       74.86
         45 |        692        6.92       81.78
         46 |         46        0.46       82.24
         47 |         64        0.64       82.88
         48 |         88        0.88       83.76
         49 |         45        0.45       84.21
         50 |        600        6.00       90.21
         51 |         29        0.29       90.50
         52 |         59        0.59       91.09
         53 |         72        0.72       91.81
         54 |         41        0.41       92.22
         55 |        458        4.58       96.80
         56 |         49        0.49       97.29
         57 |         60        0.60       97.89
         58 |         85        0.85       98.74
         59 |         47        0.47       99.21
         99 |         79        0.79      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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