Frequencies for harm_ev variable in vehnit dataset :

      FIRST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         42        3.16        3.16
          2 |          6        0.45        3.61
          8 |        126        9.49       13.10
          9 |         11        0.83       13.93
         12 |        329       24.77       38.70
         13 |          1        0.08       38.78
         14 |        500       37.65       76.43
         15 |          2        0.15       76.58
         18 |          8        0.60       77.18
         19 |          3        0.23       77.41
         23 |          1        0.08       77.48
         24 |         18        1.36       78.84
         25 |          9        0.68       79.52
         27 |         18        1.36       80.87
         28 |          1        0.08       80.95
         29 |          3        0.23       81.17
         30 |         19        1.43       82.61
         31 |          7        0.53       83.13
         32 |          1        0.08       83.21
         33 |         60        4.52       87.73
         34 |         17        1.28       89.01
         35 |          5        0.38       89.38
         37 |          2        0.15       89.53
         38 |         44        3.31       92.85
         39 |          7        0.53       93.37
         40 |          5        0.38       93.75
         41 |          2        0.15       93.90
         42 |         21        1.58       95.48
         43 |         12        0.90       96.39
         45 |         20        1.51       97.89
         46 |          3        0.23       98.12
         48 |          1        0.08       98.19
         51 |          4        0.30       98.49
         52 |          1        0.08       98.57
         53 |         14        1.05       99.62
         54 |          1        0.08       99.70
         55 |          4        0.30      100.00
------------+-----------------------------------
      Total |      1,328      100.00

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