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

      First |
    Harmful |
      Event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,234       12.34       12.34
          2 |          4        0.04       12.38
          3 |         20        0.20       12.58
          4 |          1        0.01       12.59
          5 |         85        0.85       13.44
          7 |         29        0.29       13.73
          8 |      1,672       16.72       30.45
          9 |        240        2.40       32.85
         10 |         62        0.62       33.47
         11 |         21        0.21       33.68
         12 |      3,573       35.73       69.41
         13 |        183        1.83       71.24
         14 |        207        2.07       73.31
         15 |         19        0.19       73.50
         16 |          4        0.04       73.54
         17 |         46        0.46       74.00
         18 |         36        0.36       74.36
         19 |         17        0.17       74.53
         20 |          3        0.03       74.56
         21 |         32        0.32       74.88
         22 |         41        0.41       75.29
         23 |         35        0.35       75.64
         24 |        228        2.28       77.92
         25 |         60        0.60       78.52
         26 |         17        0.17       78.69
         27 |         91        0.91       79.60
         29 |         44        0.44       80.04
         30 |        256        2.56       82.60
         31 |         95        0.95       83.55
         32 |         82        0.82       84.37
         33 |        243        2.43       86.80
         34 |        151        1.51       88.31
         35 |        127        1.27       89.58
         36 |         37        0.37       89.95
         37 |         82        0.82       90.77
         38 |        138        1.38       92.15
         39 |         41        0.41       92.56
         40 |         10        0.10       92.66
         41 |         30        0.30       92.96
         42 |        520        5.20       98.16
         43 |        182        1.82       99.98
         44 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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