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

       most |
    harmful |
      event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,337       13.37       13.37
          2 |        104        1.04       14.41
          3 |         36        0.36       14.77
          5 |         72        0.72       15.49
          7 |          1        0.01       15.50
          8 |      1,381       13.81       29.31
          9 |        269        2.69       32.00
         10 |         17        0.17       32.17
         11 |         13        0.13       32.30
         12 |      5,057       50.57       82.87
         14 |         82        0.82       83.69
         15 |         50        0.50       84.19
         16 |          2        0.02       84.21
         17 |         19        0.19       84.40
         18 |         20        0.20       84.60
         19 |         27        0.27       84.87
         20 |          5        0.05       84.92
         21 |         22        0.22       85.14
         23 |          7        0.07       85.21
         24 |         75        0.75       85.96
         25 |         43        0.43       86.39
         26 |          2        0.02       86.41
         30 |        174        1.74       88.15
         31 |         16        0.16       88.31
         32 |         27        0.27       88.58
         33 |         34        0.34       88.92
         34 |         32        0.32       89.24
         35 |         70        0.70       89.94
         38 |         44        0.44       90.38
         39 |         40        0.40       90.78
         40 |          2        0.02       90.80
         41 |          3        0.03       90.83
         42 |        607        6.07       96.90
         43 |         24        0.24       97.14
         45 |          3        0.03       97.17
         46 |         19        0.19       97.36
         49 |          1        0.01       97.37
         50 |          2        0.02       97.39
         52 |         15        0.15       97.54
         53 |          4        0.04       97.58
         54 |        184        1.84       99.42
         58 |          9        0.09       99.51
         59 |         25        0.25       99.76
         72 |          2        0.02       99.78
         73 |          8        0.08       99.86
         99 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016