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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        544        5.44        5.44
          1 |        554        5.54       10.98
          2 |        535        5.35       16.33
          3 |        285        2.85       19.18
          4 |        202        2.02       21.20
          5 |        214        2.14       23.34
          6 |        264        2.64       25.98
          7 |        263        2.63       28.61
          8 |        202        2.02       30.63
          9 |        201        2.01       32.64
         10 |        238        2.38       35.02
         11 |        300        3.00       38.02
         12 |        302        3.02       41.04
         13 |        334        3.34       44.38
         14 |        414        4.14       48.52
         15 |        436        4.36       52.88
         16 |        509        5.09       57.97
         17 |        520        5.20       63.17
         18 |        638        6.38       69.55
         19 |        607        6.07       75.62
         20 |        618        6.18       81.80
         21 |        573        5.73       87.53
         22 |        554        5.54       93.07
         23 |        616        6.16       99.23
         24 |         12        0.12       99.35
         99 |         65        0.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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