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

      FIRST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,031       10.31       10.31
          2 |          3        0.03       10.34
          3 |         18        0.18       10.52
          5 |         75        0.75       11.27
          7 |         15        0.15       11.42
          8 |      1,743       17.43       28.85
          9 |        301        3.01       31.86
         10 |         64        0.64       32.50
         11 |         21        0.21       32.71
         12 |      3,851       38.51       71.22
         13 |        123        1.23       72.45
         14 |        154        1.54       73.99
         15 |         12        0.12       74.11
         16 |          3        0.03       74.14
         17 |         41        0.41       74.55
         18 |         37        0.37       74.92
         19 |         17        0.17       75.09
         20 |          4        0.04       75.13
         21 |         26        0.26       75.39
         22 |         11        0.11       75.50
         23 |         35        0.35       75.85
         24 |        220        2.20       78.05
         25 |         55        0.55       78.60
         26 |          8        0.08       78.68
         27 |         93        0.93       79.61
         28 |          2        0.02       79.63
         29 |         22        0.22       79.85
         30 |        228        2.28       82.13
         31 |         75        0.75       82.88
         32 |        106        1.06       83.94
         33 |        318        3.18       87.12
         34 |        150        1.50       88.62
         35 |         93        0.93       89.55
         36 |         22        0.22       89.77
         37 |         62        0.62       90.39
         38 |        128        1.28       91.67
         39 |         45        0.45       92.12
         40 |          5        0.05       92.17
         41 |         22        0.22       92.39
         42 |        576        5.76       98.15
         43 |        160        1.60       99.75
         45 |         10        0.10       99.85
         46 |          7        0.07       99.92
         99 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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