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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        597        5.97        5.97
          1 |        657        6.57       12.54
          2 |        631        6.31       18.85
          3 |        331        3.31       22.16
          4 |        196        1.96       24.12
          5 |        197        1.97       26.09
          6 |        198        1.98       28.07
          7 |        220        2.20       30.27
          8 |        187        1.87       32.14
          9 |        186        1.86       34.00
         10 |        242        2.42       36.42
         11 |        253        2.53       38.95
         12 |        289        2.89       41.84
         13 |        307        3.07       44.91
         14 |        387        3.87       48.78
         15 |        466        4.66       53.44
         16 |        503        5.03       58.47
         17 |        569        5.69       64.16
         18 |        602        6.02       70.18
         19 |        565        5.65       75.83
         20 |        590        5.90       81.73
         21 |        572        5.72       87.45
         22 |        619        6.19       93.64
         23 |        618        6.18       99.82
         24 |          6        0.06       99.88
         99 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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