Frequencies for pimpact1 variable in parkwork dataset :

    Area of |
    Impact- |
    Initial |
    Damaged |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         15        1.41        1.41
          2 |         13        1.22        2.63
          3 |         34        3.20        5.83
          4 |         12        1.13        6.95
          5 |         31        2.91        9.87
          6 |        377       35.43       45.30
          7 |         81        7.61       52.91
          8 |         24        2.26       55.17
          9 |         80        7.52       62.69
         10 |         24        2.26       64.94
         11 |         49        4.61       69.55
         12 |        145       13.63       83.18
         13 |         20        1.88       85.06
         14 |          6        0.56       85.62
         18 |          3        0.28       85.90
         61 |         52        4.89       90.79
         62 |         12        1.13       91.92
         63 |         21        1.97       93.89
         81 |         14        1.32       95.21
         82 |          3        0.28       95.49
         83 |          3        0.28       95.77
         98 |         23        2.16       97.93
         99 |         22        2.07      100.00
------------+-----------------------------------
      Total |      1,064      100.00

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