Frequencies for m_harm variable in vehnit dataset :

       MOST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |          2        0.15        0.15
          6 |          1        0.08        0.23
          7 |          1        0.08        0.30
          8 |         32        2.41        2.71
          9 |          4        0.30        3.01
         12 |        976       73.49       76.51
         13 |          3        0.23       76.73
         14 |        216       16.27       93.00
         16 |          2        0.15       93.15
         17 |          1        0.08       93.22
         18 |          5        0.38       93.60
         19 |          1        0.08       93.67
         45 |          5        0.38       94.05
         54 |         68        5.12       99.17
         55 |         10        0.75       99.92
         99 |          1        0.08      100.00
------------+-----------------------------------
      Total |      1,328      100.00

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