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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        481        4.81        4.81
          1 |        515        5.15        9.96
          2 |        405        4.05       14.01
          3 |        222        2.22       16.23
          4 |        198        1.98       18.21
          5 |        210        2.10       20.31
          6 |        249        2.49       22.80
          7 |        319        3.19       25.99
          8 |        193        1.93       27.92
          9 |        232        2.32       30.24
         10 |        196        1.96       32.20
         11 |        332        3.32       35.52
         12 |        365        3.65       39.17
         13 |        414        4.14       43.31
         14 |        554        5.54       48.85
         15 |        543        5.43       54.28
         16 |        505        5.05       59.33
         17 |        604        6.04       65.37
         18 |        715        7.15       72.52
         19 |        638        6.38       78.90
         20 |        531        5.31       84.21
         21 |        481        4.81       89.02
         22 |        508        5.08       94.10
         23 |        555        5.55       99.65
         24 |          1        0.01       99.66
         99 |         34        0.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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