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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        527        5.27        5.27
          1 |        509        5.09       10.36
          2 |        417        4.17       14.53
          3 |        240        2.40       16.93
          4 |        210        2.10       19.03
          5 |        160        1.60       20.63
          6 |        223        2.23       22.86
          7 |        299        2.99       25.85
          8 |        236        2.36       28.21
          9 |        176        1.76       29.97
         10 |        308        3.08       33.05
         11 |        327        3.27       36.32
         12 |        367        3.67       39.99
         13 |        384        3.84       43.83
         14 |        414        4.14       47.97
         15 |        516        5.16       53.13
         16 |        575        5.75       58.88
         17 |        637        6.37       65.25
         18 |        704        7.04       72.29
         19 |        613        6.13       78.42
         20 |        590        5.90       84.32
         21 |        463        4.63       88.95
         22 |        529        5.29       94.24
         23 |        557        5.57       99.81
         24 |          8        0.08       99.89
         99 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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