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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        568        5.68        5.68
          1 |        585        5.85       11.53
          2 |        581        5.81       17.34
          3 |        304        3.04       20.38
          4 |        204        2.04       22.42
          5 |        196        1.96       24.38
          6 |        217        2.17       26.55
          7 |        249        2.49       29.04
          8 |        211        2.11       31.15
          9 |        211        2.11       33.26
         10 |        266        2.66       35.92
         11 |        273        2.73       38.65
         12 |        294        2.94       41.59
         13 |        334        3.34       44.93
         14 |        378        3.78       48.71
         15 |        445        4.45       53.16
         16 |        522        5.22       58.38
         17 |        594        5.94       64.32
         18 |        583        5.83       70.15
         19 |        620        6.20       76.35
         20 |        585        5.85       82.20
         21 |        606        6.06       88.26
         22 |        557        5.57       93.83
         23 |        601        6.01       99.84
         24 |          6        0.06       99.90
         99 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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