Frequencies for first 10,000 rows of harm_ev variable in accident dataset :

      First |
    Harmful |
      Event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,207       12.07       12.07
          2 |          1        0.01       12.08
          3 |         32        0.32       12.40
          5 |         81        0.81       13.21
          6 |          2        0.02       13.23
          7 |         16        0.16       13.39
          8 |      1,709       17.09       30.48
          9 |        241        2.41       32.89
         10 |         86        0.86       33.75
         11 |         32        0.32       34.07
         12 |      3,556       35.56       69.63
         13 |        149        1.49       71.12
         14 |        218        2.18       73.30
         15 |         20        0.20       73.50
         16 |          1        0.01       73.51
         17 |         53        0.53       74.04
         18 |         34        0.34       74.38
         19 |         13        0.13       74.51
         20 |          6        0.06       74.57
         21 |         40        0.40       74.97
         22 |         21        0.21       75.18
         23 |         31        0.31       75.49
         24 |        250        2.50       77.99
         25 |         75        0.75       78.74
         26 |         14        0.14       78.88
         27 |         98        0.98       79.86
         29 |         49        0.49       80.35
         30 |        277        2.77       83.12
         31 |         93        0.93       84.05
         32 |         63        0.63       84.68
         33 |        269        2.69       87.37
         34 |        147        1.47       88.84
         35 |        131        1.31       90.15
         36 |         32        0.32       90.47
         37 |         59        0.59       91.06
         38 |        120        1.20       92.26
         39 |         39        0.39       92.65
         40 |          5        0.05       92.70
         41 |         37        0.37       93.07
         42 |        537        5.37       98.44
         43 |        152        1.52       99.96
         44 |          1        0.01       99.97
         99 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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