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

 crash type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         80        0.80        0.80
          1 |        908        9.08        9.88
          2 |        447        4.47       14.35
          3 |          6        0.06       14.41
          4 |          5        0.05       14.46
          5 |         11        0.11       14.57
          6 |        667        6.67       21.24
          7 |        400        4.00       25.24
          8 |          5        0.05       25.29
          9 |          1        0.01       25.30
         10 |          6        0.06       25.36
         11 |         45        0.45       25.81
         12 |         12        0.12       25.93
         13 |      1,439       14.39       40.32
         14 |         34        0.34       40.66
         15 |         18        0.18       40.84
         20 |        133        1.33       42.17
         21 |        116        1.16       43.33
         22 |         15        0.15       43.48
         23 |          2        0.02       43.50
         24 |        192        1.92       45.42
         25 |        180        1.80       47.22
         26 |          8        0.08       47.30
         27 |          4        0.04       47.34
         28 |         53        0.53       47.87
         29 |         44        0.44       48.31
         30 |          2        0.02       48.33
         31 |          7        0.07       48.40
         32 |         44        0.44       48.84
         33 |          4        0.04       48.88
         42 |          4        0.04       48.92
         44 |         50        0.50       49.42
         45 |        117        1.17       50.59
         46 |         37        0.37       50.96
         47 |         32        0.32       51.28
         48 |         80        0.80       52.08
         49 |          4        0.04       52.12
         50 |        418        4.18       56.30
         51 |        418        4.18       60.48
         52 |        158        1.58       62.06
         53 |          2        0.02       62.08
         58 |          3        0.03       62.11
         59 |          3        0.03       62.14
         62 |          2        0.02       62.16
         64 |        144        1.44       63.60
         65 |        144        1.44       65.04
         66 |        130        1.30       66.34
         68 |        320        3.20       69.54
         69 |        320        3.20       72.74
         70 |          5        0.05       72.79
         71 |          5        0.05       72.84
         72 |         24        0.24       73.08
         73 |         24        0.24       73.32
         74 |         20        0.20       73.52
         76 |         13        0.13       73.65
         77 |         13        0.13       73.78
         78 |         10        0.10       73.88
         79 |         10        0.10       73.98
         80 |          4        0.04       74.02
         81 |          4        0.04       74.06
         82 |        145        1.45       75.51
         83 |        145        1.45       76.96
         84 |         12        0.12       77.08
         86 |        134        1.34       78.42
         87 |        134        1.34       79.76
         88 |        217        2.17       81.93
         89 |        217        2.17       84.10
         90 |          6        0.06       84.16
         91 |          6        0.06       84.22
         92 |         14        0.14       84.36
         93 |          5        0.05       84.41
         98 |      1,505       15.05       99.46
         99 |         54        0.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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