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

    hosp_hr |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      2,410       24.10       24.10
          1 |         52        0.52       24.62
          2 |         52        0.52       25.14
          3 |         26        0.26       25.40
          4 |         18        0.18       25.58
          5 |         17        0.17       25.75
          6 |         17        0.17       25.92
          7 |         33        0.33       26.25
          8 |         38        0.38       26.63
          9 |         34        0.34       26.97
         10 |         31        0.31       27.28
         11 |         32        0.32       27.60
         12 |         44        0.44       28.04
         13 |         46        0.46       28.50
         14 |         42        0.42       28.92
         15 |         59        0.59       29.51
         16 |         70        0.70       30.21
         17 |         55        0.55       30.76
         18 |         70        0.70       31.46
         19 |         52        0.52       31.98
         20 |         56        0.56       32.54
         21 |         44        0.44       32.98
         22 |         63        0.63       33.61
         23 |         56        0.56       34.17
         24 |          2        0.02       34.19
         99 |      6,581       65.81      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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