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

    Time of |
Accident-Ho |
         ur |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        485        4.85        4.85
          1 |        533        5.33       10.18
          2 |        402        4.02       14.20
          3 |        202        2.02       16.22
          4 |        130        1.30       17.52
          5 |        133        1.33       18.85
          6 |        262        2.62       21.47
          7 |        231        2.31       23.78
          8 |        185        1.85       25.63
          9 |        206        2.06       27.69
         10 |        289        2.89       30.58
         11 |        307        3.07       33.65
         12 |        369        3.69       37.34
         13 |        375        3.75       41.09
         14 |        415        4.15       45.24
         15 |        523        5.23       50.47
         16 |        621        6.21       56.68
         17 |        740        7.40       64.08
         18 |        656        6.56       70.64
         19 |        631        6.31       76.95
         20 |        586        5.86       82.81
         21 |        555        5.55       88.36
         22 |        562        5.62       93.98
         23 |        581        5.81       99.79
         24 |         14        0.14       99.93
         99 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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