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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        431        4.31        4.31
          1 |        495        4.95        9.26
          2 |        332        3.32       12.58
          3 |        243        2.43       15.01
          4 |        194        1.94       16.95
          5 |        211        2.11       19.06
          6 |        272        2.72       21.78
          7 |        291        2.91       24.69
          8 |        271        2.71       27.40
          9 |        220        2.20       29.60
         10 |        357        3.57       33.17
         11 |        285        2.85       36.02
         12 |        351        3.51       39.53
         13 |        383        3.83       43.36
         14 |        435        4.35       47.71
         15 |        574        5.74       53.45
         16 |        518        5.18       58.63
         17 |        612        6.12       64.75
         18 |        738        7.38       72.13
         19 |        617        6.17       78.30
         20 |        517        5.17       83.47
         21 |        578        5.78       89.25
         22 |        616        6.16       95.41
         23 |        423        4.23       99.64
         24 |          2        0.02       99.66
         99 |         34        0.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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