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

       MOST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,490       14.90       14.90
          2 |        103        1.03       15.93
          3 |         58        0.58       16.51
          5 |         47        0.47       16.98
          6 |          1        0.01       16.99
          7 |         10        0.10       17.09
          8 |      1,255       12.55       29.64
          9 |        195        1.95       31.59
         10 |         63        0.63       32.22
         11 |          5        0.05       32.27
         12 |      5,252       52.52       84.79
         13 |        129        1.29       86.08
         14 |         97        0.97       87.05
         15 |         14        0.14       87.19
         16 |          2        0.02       87.21
         17 |         28        0.28       87.49
         18 |         25        0.25       87.74
         19 |         30        0.30       88.04
         20 |          3        0.03       88.07
         21 |         24        0.24       88.31
         22 |          9        0.09       88.40
         23 |         20        0.20       88.60
         24 |         79        0.79       89.39
         25 |         36        0.36       89.75
         26 |          1        0.01       89.76
         27 |         22        0.22       89.98
         28 |          2        0.02       90.00
         29 |         47        0.47       90.47
         30 |        175        1.75       92.22
         31 |         17        0.17       92.39
         32 |         27        0.27       92.66
         33 |         14        0.14       92.80
         34 |         19        0.19       92.99
         35 |         41        0.41       93.40
         36 |         17        0.17       93.57
         37 |         25        0.25       93.82
         38 |         21        0.21       94.03
         39 |         28        0.28       94.31
         40 |          3        0.03       94.34
         41 |          1        0.01       94.35
         42 |        520        5.20       99.55
         43 |         27        0.27       99.82
         45 |          2        0.02       99.84
         46 |         14        0.14       99.98
         99 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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