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

 crash type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         67        0.67        0.67
          1 |        962        9.62       10.29
          2 |        393        3.93       14.22
          3 |         14        0.14       14.36
          4 |          5        0.05       14.41
          5 |         12        0.12       14.53
          6 |        630        6.30       20.83
          7 |        354        3.54       24.37
          8 |          8        0.08       24.45
          9 |          6        0.06       24.51
         10 |         14        0.14       24.65
         11 |         54        0.54       25.19
         12 |         12        0.12       25.31
         13 |      1,491       14.91       40.22
         14 |         39        0.39       40.61
         15 |         22        0.22       40.83
         20 |        161        1.61       42.44
         21 |        154        1.54       43.98
         22 |          6        0.06       44.04
         23 |          1        0.01       44.05
         24 |        162        1.62       45.67
         25 |        154        1.54       47.21
         26 |          5        0.05       47.26
         27 |          3        0.03       47.29
         28 |         40        0.40       47.69
         29 |         34        0.34       48.03
         30 |          4        0.04       48.07
         31 |          2        0.02       48.09
         32 |         68        0.68       48.77
         33 |          6        0.06       48.83
         38 |          1        0.01       48.84
         39 |          1        0.01       48.85
         42 |         12        0.12       48.97
         43 |          2        0.02       48.99
         44 |         35        0.35       49.34
         45 |        104        1.04       50.38
         46 |         35        0.35       50.73
         47 |         34        0.34       51.07
         48 |         56        0.56       51.63
         50 |        398        3.98       55.61
         51 |        398        3.98       59.59
         52 |        180        1.80       61.39
         53 |          6        0.06       61.45
         58 |          2        0.02       61.47
         59 |          2        0.02       61.49
         60 |          1        0.01       61.50
         61 |          1        0.01       61.51
         62 |          4        0.04       61.55
         64 |        133        1.33       62.88
         65 |        133        1.33       64.21
         66 |        124        1.24       65.45
         68 |        354        3.54       68.99
         69 |        354        3.54       72.53
         70 |          4        0.04       72.57
         71 |          4        0.04       72.61
         72 |         19        0.19       72.80
         73 |         19        0.19       72.99
         74 |         32        0.32       73.31
         76 |          9        0.09       73.40
         77 |          9        0.09       73.49
         78 |         10        0.10       73.59
         79 |         10        0.10       73.69
         80 |          4        0.04       73.73
         81 |          4        0.04       73.77
         82 |        171        1.71       75.48
         83 |        171        1.71       77.19
         84 |          8        0.08       77.27
         85 |          6        0.06       77.33
         86 |        140        1.40       78.73
         87 |        140        1.40       80.13
         88 |        206        2.06       82.19
         89 |        206        2.06       84.25
         90 |          2        0.02       84.27
         91 |          4        0.04       84.31
         92 |         24        0.24       84.55
         93 |         11        0.11       84.66
         98 |      1,476       14.76       99.42
         99 |         58        0.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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