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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        445        4.45        4.45
          1 |        366        3.66        8.11
          2 |        316        3.16       11.27
          3 |        188        1.88       13.15
          4 |        169        1.69       14.84
          5 |        236        2.36       17.20
          6 |        255        2.55       19.75
          7 |        320        3.20       22.95
          8 |        309        3.09       26.04
          9 |        381        3.81       29.85
         10 |        292        2.92       32.77
         11 |        342        3.42       36.19
         12 |        392        3.92       40.11
         13 |        419        4.19       44.30
         14 |        506        5.06       49.36
         15 |        691        6.91       56.27
         16 |        577        5.77       62.04
         17 |        596        5.96       68.00
         18 |        667        6.67       74.67
         19 |        542        5.42       80.09
         20 |        524        5.24       85.33
         21 |        450        4.50       89.83
         22 |        534        5.34       95.17
         23 |        443        4.43       99.60
         24 |         12        0.12       99.72
         99 |         28        0.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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