Frequencies for first 10,000 rows of m_harm variable in vehicle dataset :

       MOST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,596       15.96       15.96
          2 |         86        0.86       16.82
          3 |         36        0.36       17.18
          4 |          1        0.01       17.19
          5 |         38        0.38       17.57
          6 |          1        0.01       17.58
          7 |         14        0.14       17.72
          8 |      1,176       11.76       29.48
          9 |        177        1.77       31.25
         10 |         46        0.46       31.71
         11 |         17        0.17       31.88
         12 |      5,277       52.77       84.65
         13 |        169        1.69       86.34
         14 |         95        0.95       87.29
         15 |         24        0.24       87.53
         16 |          2        0.02       87.55
         17 |         23        0.23       87.78
         18 |         14        0.14       87.92
         19 |         17        0.17       88.09
         20 |          4        0.04       88.13
         21 |         36        0.36       88.49
         22 |          6        0.06       88.55
         23 |         16        0.16       88.71
         24 |         77        0.77       89.48
         25 |         32        0.32       89.80
         27 |         15        0.15       89.95
         29 |         49        0.49       90.44
         30 |        163        1.63       92.07
         31 |         16        0.16       92.23
         32 |         33        0.33       92.56
         33 |          7        0.07       92.63
         34 |         27        0.27       92.90
         35 |         39        0.39       93.29
         36 |         15        0.15       93.44
         37 |         18        0.18       93.62
         38 |         20        0.20       93.82
         39 |         45        0.45       94.27
         40 |          5        0.05       94.32
         41 |          3        0.03       94.35
         42 |        478        4.78       99.13
         43 |         22        0.22       99.35
         45 |          3        0.03       99.38
         46 |         21        0.21       99.59
         99 |         41        0.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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