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

    Arrival |
   Time EMS |
      (MIN) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        114        1.14        1.14
          1 |         64        0.64        1.78
          2 |         71        0.71        2.49
          3 |         71        0.71        3.20
          4 |         71        0.71        3.91
          5 |        114        1.14        5.05
          6 |         84        0.84        5.89
          7 |         53        0.53        6.42
          8 |         81        0.81        7.23
          9 |         79        0.79        8.02
         10 |        110        1.10        9.12
         11 |         62        0.62        9.74
         12 |         82        0.82       10.56
         13 |         69        0.69       11.25
         14 |         92        0.92       12.17
         15 |        110        1.10       13.27
         16 |         75        0.75       14.02
         17 |         74        0.74       14.76
         18 |         89        0.89       15.65
         19 |         80        0.80       16.45
         20 |         96        0.96       17.41
         21 |         85        0.85       18.26
         22 |         74        0.74       19.00
         23 |         98        0.98       19.98
         24 |         81        0.81       20.79
         25 |        105        1.05       21.84
         26 |         85        0.85       22.69
         27 |         69        0.69       23.38
         28 |         79        0.79       24.17
         29 |         82        0.82       24.99
         30 |        137        1.37       26.36
         31 |         70        0.70       27.06
         32 |         89        0.89       27.95
         33 |         78        0.78       28.73
         34 |         67        0.67       29.40
         35 |        116        1.16       30.56
         36 |         82        0.82       31.38
         37 |         67        0.67       32.05
         38 |         77        0.77       32.82
         39 |         63        0.63       33.45
         40 |        104        1.04       34.49
         41 |         80        0.80       35.29
         42 |         81        0.81       36.10
         43 |         77        0.77       36.87
         44 |         85        0.85       37.72
         45 |        116        1.16       38.88
         46 |         76        0.76       39.64
         47 |         82        0.82       40.46
         48 |         87        0.87       41.33
         49 |         77        0.77       42.10
         50 |        122        1.22       43.32
         51 |         67        0.67       43.99
         52 |         69        0.69       44.68
         53 |         67        0.67       45.35
         54 |         68        0.68       46.03
         55 |        114        1.14       47.17
         56 |         79        0.79       47.96
         57 |         87        0.87       48.83
         58 |         75        0.75       49.58
         59 |         69        0.69       50.27
         88 |        373        3.73       54.00
         98 |          7        0.07       54.07
         99 |      4,593       45.93      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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