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

       MOST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,590       15.90       15.90
          2 |         96        0.96       16.86
          3 |         37        0.37       17.23
          5 |         35        0.35       17.58
          7 |          8        0.08       17.66
          8 |      1,185       11.85       29.51
          9 |        171        1.71       31.22
         10 |         33        0.33       31.55
         11 |         10        0.10       31.65
         12 |      5,367       53.67       85.32
         13 |        135        1.35       86.67
         14 |         81        0.81       87.48
         15 |         29        0.29       87.77
         16 |          5        0.05       87.82
         17 |         24        0.24       88.06
         18 |          4        0.04       88.10
         19 |         25        0.25       88.35
         21 |         22        0.22       88.57
         22 |          1        0.01       88.58
         23 |         27        0.27       88.85
         24 |         75        0.75       89.60
         25 |         18        0.18       89.78
         26 |          2        0.02       89.80
         27 |          8        0.08       89.88
         28 |          2        0.02       89.90
         29 |         33        0.33       90.23
         30 |        169        1.69       91.92
         31 |         26        0.26       92.18
         32 |         35        0.35       92.53
         33 |         12        0.12       92.65
         34 |         20        0.20       92.85
         35 |         31        0.31       93.16
         36 |          9        0.09       93.25
         37 |         24        0.24       93.49
         38 |         26        0.26       93.75
         39 |         36        0.36       94.11
         40 |          3        0.03       94.14
         41 |          2        0.02       94.16
         42 |        517        5.17       99.33
         43 |         23        0.23       99.56
         45 |          5        0.05       99.61
         46 |         13        0.13       99.74
         47 |          8        0.08       99.82
         48 |          1        0.01       99.83
         99 |         17        0.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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