Frequencies for harm_ev variable in vehnit dataset :

      FIRST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         24        2.15        2.15
          5 |         12        1.08        3.23
          7 |          3        0.27        3.49
          8 |        124       11.11       14.61
          9 |          9        0.81       15.41
         10 |          1        0.09       15.50
         12 |        212       19.00       34.50
         13 |          2        0.18       34.68
         14 |        460       41.22       75.90
         15 |          1        0.09       75.99
         17 |          1        0.09       76.08
         18 |         11        0.99       77.06
         19 |          1        0.09       77.15
         23 |          3        0.27       77.42
         24 |          3        0.27       77.69
         25 |          6        0.54       78.23
         26 |          1        0.09       78.32
         27 |         11        0.99       79.30
         29 |          3        0.27       79.57
         30 |         25        2.24       81.81
         31 |          9        0.81       82.62
         32 |         10        0.90       83.51
         33 |         58        5.20       88.71
         34 |          5        0.45       89.16
         35 |          2        0.18       89.34
         37 |          3        0.27       89.61
         38 |         20        1.79       91.40
         39 |          7        0.63       92.03
         41 |          2        0.18       92.20
         42 |         27        2.42       94.62
         43 |         17        1.52       96.15
         44 |          3        0.27       96.42
         45 |         13        1.16       97.58
         46 |          4        0.36       97.94
         53 |         22        1.97       99.91
         54 |          1        0.09      100.00
------------+-----------------------------------
      Total |      1,116      100.00

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