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

ems time at |
   hospital |
     (hour) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         54        0.54        0.54
          1 |         41        0.41        0.95
          2 |         40        0.40        1.35
          3 |         45        0.45        1.80
          4 |         19        0.19        1.99
          5 |         30        0.30        2.29
          6 |         28        0.28        2.57
          7 |         41        0.41        2.98
          8 |         43        0.43        3.41
          9 |         38        0.38        3.79
         10 |         44        0.44        4.23
         11 |         50        0.50        4.73
         12 |         54        0.54        5.27
         13 |         64        0.64        5.91
         14 |         76        0.76        6.67
         15 |         63        0.63        7.30
         16 |         66        0.66        7.96
         17 |         89        0.89        8.85
         18 |        103        1.03        9.88
         19 |         76        0.76       10.64
         20 |         77        0.77       11.41
         21 |         65        0.65       12.06
         22 |         67        0.67       12.73
         23 |         60        0.60       13.33
         88 |      2,969       29.69       43.02
         99 |      5,698       56.98      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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