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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        542        5.42        5.42
          1 |        639        6.39       11.81
          2 |        589        5.89       17.70
          3 |        349        3.49       21.19
          4 |        199        1.99       23.18
          5 |        229        2.29       25.47
          6 |        210        2.10       27.57
          7 |        227        2.27       29.84
          8 |        205        2.05       31.89
          9 |        192        1.92       33.81
         10 |        228        2.28       36.09
         11 |        286        2.86       38.95
         12 |        281        2.81       41.76
         13 |        303        3.03       44.79
         14 |        381        3.81       48.60
         15 |        452        4.52       53.12
         16 |        536        5.36       58.48
         17 |        529        5.29       63.77
         18 |        605        6.05       69.82
         19 |        547        5.47       75.29
         20 |        590        5.90       81.19
         21 |        597        5.97       87.16
         22 |        581        5.81       92.97
         23 |        638        6.38       99.35
         24 |         47        0.47       99.82
         99 |         18        0.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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