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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        506        5.06        5.06
          1 |        539        5.39       10.45
          2 |        473        4.73       15.18
          3 |        271        2.71       17.89
          4 |        220        2.20       20.09
          5 |        265        2.65       22.74
          6 |        291        2.91       25.65
          7 |        248        2.48       28.13
          8 |        240        2.40       30.53
          9 |        249        2.49       33.02
         10 |        276        2.76       35.78
         11 |        291        2.91       38.69
         12 |        343        3.43       42.12
         13 |        360        3.60       45.72
         14 |        436        4.36       50.08
         15 |        505        5.05       55.13
         16 |        490        4.90       60.03
         17 |        603        6.03       66.06
         18 |        550        5.50       71.56
         19 |        571        5.71       77.27
         20 |        535        5.35       82.62
         21 |        562        5.62       88.24
         22 |        559        5.59       93.83
         23 |        537        5.37       99.20
         24 |          3        0.03       99.23
         99 |         77        0.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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