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

       MOST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,551       15.51       15.51
          2 |         58        0.58       16.09
          3 |         50        0.50       16.59
          5 |         39        0.39       16.98
          6 |          3        0.03       17.01
          7 |         11        0.11       17.12
          8 |      1,160       11.60       28.72
          9 |        155        1.55       30.27
         10 |         53        0.53       30.80
         11 |         11        0.11       30.91
         12 |      5,428       54.28       85.19
         13 |        134        1.34       86.53
         14 |         86        0.86       87.39
         15 |         18        0.18       87.57
         16 |          5        0.05       87.62
         17 |         18        0.18       87.80
         18 |          9        0.09       87.89
         19 |         25        0.25       88.14
         20 |          2        0.02       88.16
         21 |         33        0.33       88.49
         22 |          6        0.06       88.55
         23 |         18        0.18       88.73
         24 |         85        0.85       89.58
         25 |         38        0.38       89.96
         26 |          3        0.03       89.99
         27 |         11        0.11       90.10
         28 |          3        0.03       90.13
         29 |         37        0.37       90.50
         30 |        151        1.51       92.01
         31 |         17        0.17       92.18
         32 |         41        0.41       92.59
         33 |          6        0.06       92.65
         34 |         28        0.28       92.93
         35 |         32        0.32       93.25
         36 |         18        0.18       93.43
         37 |         14        0.14       93.57
         38 |         22        0.22       93.79
         39 |         25        0.25       94.04
         40 |          1        0.01       94.05
         41 |          2        0.02       94.07
         42 |        515        5.15       99.22
         43 |         40        0.40       99.62
         45 |          4        0.04       99.66
         46 |         13        0.13       99.79
         47 |          5        0.05       99.84
         49 |          1        0.01       99.85
         99 |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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