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

ems time at |
   hospital |
     (hour) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         60        0.60        0.60
          1 |         35        0.35        0.95
          2 |         33        0.33        1.28
          3 |         31        0.31        1.59
          4 |         18        0.18        1.77
          5 |         23        0.23        2.00
          6 |         41        0.41        2.41
          7 |         43        0.43        2.84
          8 |         52        0.52        3.36
          9 |         50        0.50        3.86
         10 |         40        0.40        4.26
         11 |         64        0.64        4.90
         12 |         57        0.57        5.47
         13 |         53        0.53        6.00
         14 |         61        0.61        6.61
         15 |         51        0.51        7.12
         16 |         78        0.78        7.90
         17 |         74        0.74        8.64
         18 |         81        0.81        9.45
         19 |        102        1.02       10.47
         20 |         84        0.84       11.31
         21 |         71        0.71       12.02
         22 |         61        0.61       12.63
         23 |         46        0.46       13.09
         88 |      3,347       33.47       46.56
         99 |      5,344       53.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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