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

    Time of |
Accident-Mi |
       nute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,016       10.16       10.16
          1 |         52        0.52       10.68
          2 |         74        0.74       11.42
          3 |         58        0.58       12.00
          4 |         55        0.55       12.55
          5 |        377        3.77       16.32
          6 |         47        0.47       16.79
          7 |         50        0.50       17.29
          8 |         86        0.86       18.15
          9 |         52        0.52       18.67
         10 |        544        5.44       24.11
         11 |         35        0.35       24.46
         12 |         52        0.52       24.98
         13 |         49        0.49       25.47
         14 |         88        0.88       26.35
         15 |        571        5.71       32.06
         16 |         73        0.73       32.79
         17 |         73        0.73       33.52
         18 |         72        0.72       34.24
         19 |         29        0.29       34.53
         20 |        549        5.49       40.02
         21 |         52        0.52       40.54
         22 |         73        0.73       41.27
         23 |         55        0.55       41.82
         24 |         50        0.50       42.32
         25 |        462        4.62       46.94
         26 |         55        0.55       47.49
         27 |         60        0.60       48.09
         28 |         55        0.55       48.64
         29 |         39        0.39       49.03
         30 |      1,053       10.53       59.56
         31 |         21        0.21       59.77
         32 |         63        0.63       60.40
         33 |         58        0.58       60.98
         34 |         32        0.32       61.30
         35 |        495        4.95       66.25
         36 |         46        0.46       66.71
         37 |         67        0.67       67.38
         38 |         54        0.54       67.92
         39 |         49        0.49       68.41
         40 |        564        5.64       74.05
         41 |         34        0.34       74.39
         42 |         78        0.78       75.17
         43 |         61        0.61       75.78
         44 |         57        0.57       76.35
         45 |        692        6.92       83.27
         46 |         30        0.30       83.57
         47 |         47        0.47       84.04
         48 |         66        0.66       84.70
         49 |         52        0.52       85.22
         50 |        583        5.83       91.05
         51 |         43        0.43       91.48
         52 |         62        0.62       92.10
         53 |         91        0.91       93.01
         54 |         51        0.51       93.52
         55 |        406        4.06       97.58
         56 |         58        0.58       98.16
         57 |         56        0.56       98.72
         58 |         37        0.37       99.09
         59 |         59        0.59       99.68
         99 |         32        0.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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