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

EMS time at |
   Hospital |
     (HOUR) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         45        0.45        0.45
          1 |         35        0.35        0.80
          2 |         42        0.42        1.22
          3 |         28        0.28        1.50
          4 |         18        0.18        1.68
          5 |         19        0.19        1.87
          6 |         28        0.28        2.15
          7 |         29        0.29        2.44
          8 |         39        0.39        2.83
          9 |         44        0.44        3.27
         10 |         52        0.52        3.79
         11 |         50        0.50        4.29
         12 |         55        0.55        4.84
         13 |         51        0.51        5.35
         14 |         60        0.60        5.95
         15 |         73        0.73        6.68
         16 |         79        0.79        7.47
         17 |         74        0.74        8.21
         18 |         81        0.81        9.02
         19 |         78        0.78        9.80
         20 |         71        0.71       10.51
         21 |         81        0.81       11.32
         22 |         70        0.70       12.02
         23 |         40        0.40       12.42
         88 |      3,195       31.95       44.37
         99 |      5,563       55.63      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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