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

ems time at |
   hospital |
     (hour) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         61        0.61        0.61
          1 |         35        0.35        0.96
          2 |         37        0.37        1.33
          3 |         34        0.34        1.67
          4 |         19        0.19        1.86
          5 |         25        0.25        2.11
          6 |         43        0.43        2.54
          7 |         43        0.43        2.97
          8 |         53        0.53        3.50
          9 |         52        0.52        4.02
         10 |         46        0.46        4.48
         11 |         69        0.69        5.17
         12 |         61        0.61        5.78
         13 |         57        0.57        6.35
         14 |         65        0.65        7.00
         15 |         59        0.59        7.59
         16 |         83        0.83        8.42
         17 |         80        0.80        9.22
         18 |         90        0.90       10.12
         19 |        109        1.09       11.21
         20 |         89        0.89       12.10
         21 |         75        0.75       12.85
         22 |         63        0.63       13.48
         23 |         47        0.47       13.95
         88 |      3,344       33.44       47.39
         99 |      5,261       52.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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