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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        582        5.82        5.82
          1 |        537        5.37       11.19
          2 |        495        4.95       16.14
          3 |        269        2.69       18.83
          4 |        169        1.69       20.52
          5 |        154        1.54       22.06
          6 |        232        2.32       24.38
          7 |        252        2.52       26.90
          8 |        207        2.07       28.97
          9 |        219        2.19       31.16
         10 |        266        2.66       33.82
         11 |        319        3.19       37.01
         12 |        318        3.18       40.19
         13 |        360        3.60       43.79
         14 |        409        4.09       47.88
         15 |        499        4.99       52.87
         16 |        574        5.74       58.61
         17 |        569        5.69       64.30
         18 |        664        6.64       70.94
         19 |        578        5.78       76.72
         20 |        536        5.36       82.08
         21 |        578        5.78       87.86
         22 |        552        5.52       93.38
         23 |        599        5.99       99.37
         24 |         13        0.13       99.50
         99 |         50        0.50      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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