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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        592        5.92        5.92
          1 |        606        6.06       11.98
          2 |        577        5.77       17.75
          3 |        296        2.96       20.71
          4 |        212        2.12       22.83
          5 |        203        2.03       24.86
          6 |        241        2.41       27.27
          7 |        224        2.24       29.51
          8 |        183        1.83       31.34
          9 |        235        2.35       33.69
         10 |        254        2.54       36.23
         11 |        279        2.79       39.02
         12 |        288        2.88       41.90
         13 |        363        3.63       45.53
         14 |        397        3.97       49.50
         15 |        406        4.06       53.56
         16 |        458        4.58       58.14
         17 |        538        5.38       63.52
         18 |        641        6.41       69.93
         19 |        600        6.00       75.93
         20 |        591        5.91       81.84
         21 |        579        5.79       87.63
         22 |        588        5.88       93.51
         23 |        599        5.99       99.50
         24 |         21        0.21       99.71
         99 |         29        0.29      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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