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

    Time of |
Accident-Mi |
       nute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,028       10.28       10.28
          1 |         68        0.68       10.96
          2 |         50        0.50       11.46
          3 |         61        0.61       12.07
          4 |         52        0.52       12.59
          5 |        418        4.18       16.77
          6 |         49        0.49       17.26
          7 |         68        0.68       17.94
          8 |         62        0.62       18.56
          9 |         53        0.53       19.09
         10 |        544        5.44       24.53
         11 |         41        0.41       24.94
         12 |         77        0.77       25.71
         13 |         53        0.53       26.24
         14 |         50        0.50       26.74
         15 |        775        7.75       34.49
         16 |         41        0.41       34.90
         17 |         48        0.48       35.38
         18 |         65        0.65       36.03
         19 |         50        0.50       36.53
         20 |        583        5.83       42.36
         21 |         39        0.39       42.75
         22 |         55        0.55       43.30
         23 |         63        0.63       43.93
         24 |         37        0.37       44.30
         25 |        418        4.18       48.48
         26 |         52        0.52       49.00
         27 |         54        0.54       49.54
         28 |         54        0.54       50.08
         29 |         38        0.38       50.46
         30 |        980        9.80       60.26
         31 |         40        0.40       60.66
         32 |         43        0.43       61.09
         33 |         52        0.52       61.61
         34 |         51        0.51       62.12
         35 |        406        4.06       66.18
         36 |         31        0.31       66.49
         37 |         57        0.57       67.06
         38 |         61        0.61       67.67
         39 |         39        0.39       68.06
         40 |        557        5.57       73.63
         41 |         42        0.42       74.05
         42 |         64        0.64       74.69
         43 |         59        0.59       75.28
         44 |         54        0.54       75.82
         45 |        709        7.09       82.91
         46 |         47        0.47       83.38
         47 |         46        0.46       83.84
         48 |         66        0.66       84.50
         49 |         43        0.43       84.93
         50 |        596        5.96       90.89
         51 |         47        0.47       91.36
         52 |         53        0.53       91.89
         53 |         73        0.73       92.62
         54 |         51        0.51       93.13
         55 |        421        4.21       97.34
         56 |         57        0.57       97.91
         57 |         54        0.54       98.45
         58 |         51        0.51       98.96
         59 |         39        0.39       99.35
         99 |         65        0.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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