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

    Time of |
Accident-Mi |
       nute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,071       10.71       10.71
          1 |         60        0.60       11.31
          2 |         47        0.47       11.78
          3 |         54        0.54       12.32
          4 |         70        0.70       13.02
          5 |        435        4.35       17.37
          6 |         75        0.75       18.12
          7 |         42        0.42       18.54
          8 |         57        0.57       19.11
          9 |         53        0.53       19.64
         10 |        617        6.17       25.81
         11 |         41        0.41       26.22
         12 |         63        0.63       26.85
         13 |         52        0.52       27.37
         14 |         44        0.44       27.81
         15 |        812        8.12       35.93
         16 |         46        0.46       36.39
         17 |         47        0.47       36.86
         18 |         43        0.43       37.29
         19 |         27        0.27       37.56
         20 |        602        6.02       43.58
         21 |         17        0.17       43.75
         22 |         46        0.46       44.21
         23 |         65        0.65       44.86
         24 |         61        0.61       45.47
         25 |        419        4.19       49.66
         26 |         41        0.41       50.07
         27 |         47        0.47       50.54
         28 |         53        0.53       51.07
         29 |         41        0.41       51.48
         30 |      1,081       10.81       62.29
         31 |         50        0.50       62.79
         32 |         41        0.41       63.20
         33 |         70        0.70       63.90
         34 |         33        0.33       64.23
         35 |        384        3.84       68.07
         36 |         35        0.35       68.42
         37 |         80        0.80       69.22
         38 |         73        0.73       69.95
         39 |         36        0.36       70.31
         40 |        520        5.20       75.51
         41 |         61        0.61       76.12
         42 |         28        0.28       76.40
         43 |         45        0.45       76.85
         44 |         47        0.47       77.32
         45 |        675        6.75       84.07
         46 |         54        0.54       84.61
         47 |         48        0.48       85.09
         48 |         39        0.39       85.48
         49 |         47        0.47       85.95
         50 |        660        6.60       92.55
         51 |         11        0.11       92.66
         52 |         59        0.59       93.25
         53 |         55        0.55       93.80
         54 |         37        0.37       94.17
         55 |        377        3.77       97.94
         56 |         41        0.41       98.35
         57 |         35        0.35       98.70
         58 |         84        0.84       99.54
         59 |         38        0.38       99.92
         99 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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