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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        466        4.66        4.66
          1 |        460        4.60        9.26
          2 |        409        4.09       13.35
          3 |        208        2.08       15.43
          4 |        190        1.90       17.33
          5 |        193        1.93       19.26
          6 |        232        2.32       21.58
          7 |        226        2.26       23.84
          8 |        219        2.19       26.03
          9 |        240        2.40       28.43
         10 |        293        2.93       31.36
         11 |        319        3.19       34.55
         12 |        311        3.11       37.66
         13 |        319        3.19       40.85
         14 |        440        4.40       45.25
         15 |        564        5.64       50.89
         16 |        656        6.56       57.45
         17 |        656        6.56       64.01
         18 |        729        7.29       71.30
         19 |        683        6.83       78.13
         20 |        585        5.85       83.98
         21 |        563        5.63       89.61
         22 |        542        5.42       95.03
         23 |        489        4.89       99.92
         24 |          5        0.05       99.97
         99 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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