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

    Time of |
Accident-Mi |
       nute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,107       11.07       11.07
          1 |         68        0.68       11.75
          2 |         57        0.57       12.32
          3 |         59        0.59       12.91
          4 |         60        0.60       13.51
          5 |        442        4.42       17.93
          6 |         54        0.54       18.47
          7 |         51        0.51       18.98
          8 |         62        0.62       19.60
          9 |         57        0.57       20.17
         10 |        571        5.71       25.88
         11 |         54        0.54       26.42
         12 |         61        0.61       27.03
         13 |         51        0.51       27.54
         14 |         50        0.50       28.04
         15 |        728        7.28       35.32
         16 |         45        0.45       35.77
         17 |         53        0.53       36.30
         18 |         69        0.69       36.99
         19 |         44        0.44       37.43
         20 |        562        5.62       43.05
         21 |         29        0.29       43.34
         22 |         58        0.58       43.92
         23 |         52        0.52       44.44
         24 |         58        0.58       45.02
         25 |        433        4.33       49.35
         26 |         43        0.43       49.78
         27 |         46        0.46       50.24
         28 |         61        0.61       50.85
         29 |         44        0.44       51.29
         30 |        984        9.84       61.13
         31 |         37        0.37       61.50
         32 |         47        0.47       61.97
         33 |         53        0.53       62.50
         34 |         47        0.47       62.97
         35 |        439        4.39       67.36
         36 |         47        0.47       67.83
         37 |         60        0.60       68.43
         38 |         65        0.65       69.08
         39 |         35        0.35       69.43
         40 |        525        5.25       74.68
         41 |         41        0.41       75.09
         42 |         49        0.49       75.58
         43 |         51        0.51       76.09
         44 |         38        0.38       76.47
         45 |        674        6.74       83.21
         46 |         49        0.49       83.70
         47 |         67        0.67       84.37
         48 |         65        0.65       85.02
         49 |         44        0.44       85.46
         50 |        616        6.16       91.62
         51 |         27        0.27       91.89
         52 |         49        0.49       92.38
         53 |         52        0.52       92.90
         54 |         49        0.49       93.39
         55 |        417        4.17       97.56
         56 |         48        0.48       98.04
         57 |         52        0.52       98.56
         58 |         69        0.69       99.25
         59 |         46        0.46       99.71
         99 |         29        0.29      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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