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

       most |
    harmful |
      event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,336       13.36       13.36
          2 |        106        1.06       14.42
          3 |         35        0.35       14.77
          5 |         68        0.68       15.45
          7 |          1        0.01       15.46
          8 |      1,398       13.98       29.44
          9 |        268        2.68       32.12
         10 |         17        0.17       32.29
         11 |         13        0.13       32.42
         12 |      5,049       50.49       82.91
         14 |         84        0.84       83.75
         15 |         49        0.49       84.24
         16 |          2        0.02       84.26
         17 |         19        0.19       84.45
         18 |         20        0.20       84.65
         19 |         26        0.26       84.91
         20 |          4        0.04       84.95
         21 |         22        0.22       85.17
         23 |          7        0.07       85.24
         24 |         74        0.74       85.98
         25 |         43        0.43       86.41
         26 |          2        0.02       86.43
         30 |        175        1.75       88.18
         31 |         16        0.16       88.34
         32 |         26        0.26       88.60
         33 |         35        0.35       88.95
         34 |         32        0.32       89.27
         35 |         70        0.70       89.97
         38 |         43        0.43       90.40
         39 |         41        0.41       90.81
         40 |          2        0.02       90.83
         41 |          3        0.03       90.86
         42 |        602        6.02       96.88
         43 |         25        0.25       97.13
         45 |          3        0.03       97.16
         46 |         19        0.19       97.35
         49 |          1        0.01       97.36
         50 |          2        0.02       97.38
         52 |         16        0.16       97.54
         53 |          4        0.04       97.58
         54 |        183        1.83       99.41
         58 |         10        0.10       99.51
         59 |         24        0.24       99.75
         72 |          2        0.02       99.77
         73 |          8        0.08       99.85
         99 |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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