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

    Time of |
Accident-Mi |
       nute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,082       10.82       10.82
          1 |         65        0.65       11.47
          2 |         58        0.58       12.05
          3 |         53        0.53       12.58
          4 |         38        0.38       12.96
          5 |        493        4.93       17.89
          6 |         36        0.36       18.25
          7 |         47        0.47       18.72
          8 |         66        0.66       19.38
          9 |         44        0.44       19.82
         10 |        586        5.86       25.68
         11 |         30        0.30       25.98
         12 |         60        0.60       26.58
         13 |         56        0.56       27.14
         14 |         55        0.55       27.69
         15 |        791        7.91       35.60
         16 |         44        0.44       36.04
         17 |         47        0.47       36.51
         18 |         58        0.58       37.09
         19 |         39        0.39       37.48
         20 |        630        6.30       43.78
         21 |         37        0.37       44.15
         22 |         46        0.46       44.61
         23 |         43        0.43       45.04
         24 |         54        0.54       45.58
         25 |        431        4.31       49.89
         26 |         42        0.42       50.31
         27 |         49        0.49       50.80
         28 |         53        0.53       51.33
         29 |         39        0.39       51.72
         30 |        992        9.92       61.64
         31 |         37        0.37       62.01
         32 |         41        0.41       62.42
         33 |         45        0.45       62.87
         34 |         37        0.37       63.24
         35 |        403        4.03       67.27
         36 |         34        0.34       67.61
         37 |         42        0.42       68.03
         38 |         39        0.39       68.42
         39 |         38        0.38       68.80
         40 |        557        5.57       74.37
         41 |         30        0.30       74.67
         42 |         53        0.53       75.20
         43 |         36        0.36       75.56
         44 |         37        0.37       75.93
         45 |        765        7.65       83.58
         46 |         39        0.39       83.97
         47 |         37        0.37       84.34
         48 |         65        0.65       84.99
         49 |         39        0.39       85.38
         50 |        601        6.01       91.39
         51 |         27        0.27       91.66
         52 |         45        0.45       92.11
         53 |         49        0.49       92.60
         54 |         48        0.48       93.08
         55 |        459        4.59       97.67
         56 |         35        0.35       98.02
         57 |         46        0.46       98.48
         58 |         49        0.49       98.97
         59 |         53        0.53       99.50
         99 |         50        0.50      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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