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

    Time of |
Accident-Mi |
       nute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,067       10.67       10.67
          1 |         69        0.69       11.36
          2 |         57        0.57       11.93
          3 |         56        0.56       12.49
          4 |         46        0.46       12.95
          5 |        449        4.49       17.44
          6 |         48        0.48       17.92
          7 |         55        0.55       18.47
          8 |         62        0.62       19.09
          9 |         42        0.42       19.51
         10 |        629        6.29       25.80
         11 |         43        0.43       26.23
         12 |         59        0.59       26.82
         13 |         51        0.51       27.33
         14 |         42        0.42       27.75
         15 |        705        7.05       34.80
         16 |         40        0.40       35.20
         17 |         49        0.49       35.69
         18 |         65        0.65       36.34
         19 |         46        0.46       36.80
         20 |        608        6.08       42.88
         21 |         42        0.42       43.30
         22 |         57        0.57       43.87
         23 |         52        0.52       44.39
         24 |         45        0.45       44.84
         25 |        470        4.70       49.54
         26 |         47        0.47       50.01
         27 |         50        0.50       50.51
         28 |         43        0.43       50.94
         29 |         42        0.42       51.36
         30 |      1,037       10.37       61.73
         31 |         37        0.37       62.10
         32 |         50        0.50       62.60
         33 |         53        0.53       63.13
         34 |         58        0.58       63.71
         35 |        422        4.22       67.93
         36 |         39        0.39       68.32
         37 |         51        0.51       68.83
         38 |         50        0.50       69.33
         39 |         44        0.44       69.77
         40 |        565        5.65       75.42
         41 |         39        0.39       75.81
         42 |         48        0.48       76.29
         43 |         31        0.31       76.60
         44 |         41        0.41       77.01
         45 |        694        6.94       83.95
         46 |         47        0.47       84.42
         47 |         40        0.40       84.82
         48 |         47        0.47       85.29
         49 |         38        0.38       85.67
         50 |        602        6.02       91.69
         51 |         51        0.51       92.20
         52 |         46        0.46       92.66
         53 |         56        0.56       93.22
         54 |         56        0.56       93.78
         55 |        403        4.03       97.81
         56 |         65        0.65       98.46
         57 |         41        0.41       98.87
         58 |         49        0.49       99.36
         59 |         46        0.46       99.82
         99 |         18        0.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016