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

ems time at |
   hospital |
     (hour) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         52        0.52        0.52
          1 |         47        0.47        0.99
          2 |         42        0.42        1.41
          3 |         41        0.41        1.82
          4 |         30        0.30        2.12
          5 |         30        0.30        2.42
          6 |         25        0.25        2.67
          7 |         42        0.42        3.09
          8 |         48        0.48        3.57
          9 |         44        0.44        4.01
         10 |         45        0.45        4.46
         11 |         54        0.54        5.00
         12 |         62        0.62        5.62
         13 |         72        0.72        6.34
         14 |         78        0.78        7.12
         15 |         69        0.69        7.81
         16 |         82        0.82        8.63
         17 |         90        0.90        9.53
         18 |         72        0.72       10.25
         19 |         99        0.99       11.24
         20 |         83        0.83       12.07
         21 |         84        0.84       12.91
         22 |         68        0.68       13.59
         23 |         60        0.60       14.19
         88 |      3,378       33.78       47.97
         99 |      5,203       52.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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