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

    hosp_hr |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      2,790       27.90       27.90
          1 |         29        0.29       28.19
          2 |         34        0.34       28.53
          3 |         29        0.29       28.82
          4 |         16        0.16       28.98
          5 |         15        0.15       29.13
          6 |         24        0.24       29.37
          7 |         32        0.32       29.69
          8 |         36        0.36       30.05
          9 |         31        0.31       30.36
         10 |         49        0.49       30.85
         11 |         45        0.45       31.30
         12 |         46        0.46       31.76
         13 |         44        0.44       32.20
         14 |         52        0.52       32.72
         15 |         53        0.53       33.25
         16 |         73        0.73       33.98
         17 |         59        0.59       34.57
         18 |         70        0.70       35.27
         19 |         73        0.73       36.00
         20 |         43        0.43       36.43
         21 |         74        0.74       37.17
         22 |         53        0.53       37.70
         23 |         44        0.44       38.14
         24 |          1        0.01       38.15
         99 |      6,185       61.85      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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