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

    Time of |
Accident-Mi |
       nute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,070       10.70       10.70
          1 |         69        0.69       11.39
          2 |         42        0.42       11.81
          3 |         45        0.45       12.26
          4 |         42        0.42       12.68
          5 |        464        4.64       17.32
          6 |         40        0.40       17.72
          7 |         63        0.63       18.35
          8 |         77        0.77       19.12
          9 |         40        0.40       19.52
         10 |        553        5.53       25.05
         11 |         48        0.48       25.53
         12 |         52        0.52       26.05
         13 |         54        0.54       26.59
         14 |         58        0.58       27.17
         15 |        733        7.33       34.50
         16 |         48        0.48       34.98
         17 |         48        0.48       35.46
         18 |         64        0.64       36.10
         19 |         45        0.45       36.55
         20 |        589        5.89       42.44
         21 |         44        0.44       42.88
         22 |         42        0.42       43.30
         23 |         61        0.61       43.91
         24 |         50        0.50       44.41
         25 |        428        4.28       48.69
         26 |         43        0.43       49.12
         27 |         46        0.46       49.58
         28 |         59        0.59       50.17
         29 |         36        0.36       50.53
         30 |        999        9.99       60.52
         31 |         37        0.37       60.89
         32 |         39        0.39       61.28
         33 |         36        0.36       61.64
         34 |         42        0.42       62.06
         35 |        450        4.50       66.56
         36 |         32        0.32       66.88
         37 |         55        0.55       67.43
         38 |         58        0.58       68.01
         39 |         51        0.51       68.52
         40 |        600        6.00       74.52
         41 |         38        0.38       74.90
         42 |         59        0.59       75.49
         43 |         51        0.51       76.00
         44 |         42        0.42       76.42
         45 |        741        7.41       83.83
         46 |         48        0.48       84.31
         47 |         44        0.44       84.75
         48 |         52        0.52       85.27
         49 |         41        0.41       85.68
         50 |        610        6.10       91.78
         51 |         40        0.40       92.18
         52 |         47        0.47       92.65
         53 |         40        0.40       93.05
         54 |         32        0.32       93.37
         55 |        422        4.22       97.59
         56 |         54        0.54       98.13
         57 |         57        0.57       98.70
         58 |         64        0.64       99.34
         59 |         54        0.54       99.88
         99 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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