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

    Time of |
Accident-Mi |
       nute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        956        9.56        9.56
          1 |         55        0.55       10.11
          2 |         60        0.60       10.71
          3 |         54        0.54       11.25
          4 |         53        0.53       11.78
          5 |        422        4.22       16.00
          6 |         34        0.34       16.34
          7 |         50        0.50       16.84
          8 |         80        0.80       17.64
          9 |         57        0.57       18.21
         10 |        534        5.34       23.55
         11 |         43        0.43       23.98
         12 |         70        0.70       24.68
         13 |         57        0.57       25.25
         14 |         53        0.53       25.78
         15 |        689        6.89       32.67
         16 |         47        0.47       33.14
         17 |         66        0.66       33.80
         18 |         83        0.83       34.63
         19 |         44        0.44       35.07
         20 |        536        5.36       40.43
         21 |         53        0.53       40.96
         22 |         81        0.81       41.77
         23 |         60        0.60       42.37
         24 |         50        0.50       42.87
         25 |        448        4.48       47.35
         26 |         52        0.52       47.87
         27 |         59        0.59       48.46
         28 |         68        0.68       49.14
         29 |         58        0.58       49.72
         30 |        945        9.45       59.17
         31 |         37        0.37       59.54
         32 |         63        0.63       60.17
         33 |         57        0.57       60.74
         34 |         61        0.61       61.35
         35 |        415        4.15       65.50
         36 |         38        0.38       65.88
         37 |         53        0.53       66.41
         38 |         79        0.79       67.20
         39 |         42        0.42       67.62
         40 |        561        5.61       73.23
         41 |         40        0.40       73.63
         42 |         72        0.72       74.35
         43 |         65        0.65       75.00
         44 |         49        0.49       75.49
         45 |        699        6.99       82.48
         46 |         37        0.37       82.85
         47 |         55        0.55       83.40
         48 |         59        0.59       83.99
         49 |         55        0.55       84.54
         50 |        600        6.00       90.54
         51 |         48        0.48       91.02
         52 |         52        0.52       91.54
         53 |         70        0.70       92.24
         54 |         54        0.54       92.78
         55 |        412        4.12       96.90
         56 |         51        0.51       97.41
         57 |         61        0.61       98.02
         58 |         63        0.63       98.65
         59 |         62        0.62       99.27
         99 |         73        0.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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