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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        539        5.39        5.39
          1 |        578        5.78       11.17
          2 |        508        5.08       16.25
          3 |        290        2.90       19.15
          4 |        226        2.26       21.41
          5 |        223        2.23       23.64
          6 |        267        2.67       26.31
          7 |        266        2.66       28.97
          8 |        210        2.10       31.07
          9 |        237        2.37       33.44
         10 |        280        2.80       36.24
         11 |        283        2.83       39.07
         12 |        301        3.01       42.08
         13 |        327        3.27       45.35
         14 |        412        4.12       49.47
         15 |        456        4.56       54.03
         16 |        467        4.67       58.70
         17 |        593        5.93       64.63
         18 |        615        6.15       70.78
         19 |        574        5.74       76.52
         20 |        591        5.91       82.43
         21 |        548        5.48       87.91
         22 |        556        5.56       93.47
         23 |        567        5.67       99.14
         24 |          8        0.08       99.22
         99 |         78        0.78      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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