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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        478        4.78        4.78
          1 |        528        5.28       10.06
          2 |        468        4.68       14.74
          3 |        270        2.70       17.44
          4 |        179        1.79       19.23
          5 |        218        2.18       21.41
          6 |        263        2.63       24.04
          7 |        270        2.70       26.74
          8 |        212        2.12       28.86
          9 |        217        2.17       31.03
         10 |        271        2.71       33.74
         11 |        306        3.06       36.80
         12 |        343        3.43       40.23
         13 |        355        3.55       43.78
         14 |        398        3.98       47.76
         15 |        544        5.44       53.20
         16 |        493        4.93       58.13
         17 |        600        6.00       64.13
         18 |        632        6.32       70.45
         19 |        597        5.97       76.42
         20 |        565        5.65       82.07
         21 |        570        5.70       87.77
         22 |        541        5.41       93.18
         23 |        576        5.76       98.94
         24 |         12        0.12       99.06
         99 |         94        0.94      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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