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

    hosp_hr |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      2,627       26.27       26.27
          1 |         15        0.15       26.42
          2 |         19        0.19       26.61
          3 |         10        0.10       26.71
          4 |          9        0.09       26.80
          5 |          8        0.08       26.88
          6 |         12        0.12       27.00
          7 |         18        0.18       27.18
          8 |         16        0.16       27.34
          9 |         14        0.14       27.48
         10 |         17        0.17       27.65
         11 |         17        0.17       27.82
         12 |         13        0.13       27.95
         13 |         25        0.25       28.20
         14 |         21        0.21       28.41
         15 |         30        0.30       28.71
         16 |         22        0.22       28.93
         17 |         32        0.32       29.25
         18 |         35        0.35       29.60
         19 |         31        0.31       29.91
         20 |         24        0.24       30.15
         21 |         32        0.32       30.47
         22 |         19        0.19       30.66
         23 |         29        0.29       30.95
         99 |      6,905       69.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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