Frequencies for pimpact1 variable in parkwork dataset :

   areas of |
   impact - |
    initial |
    contact |
      point |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         25        2.18        2.18
          2 |         13        1.13        3.32
          3 |         22        1.92        5.24
          4 |         11        0.96        6.20
          5 |         37        3.23        9.42
          6 |        470       41.01       50.44
          7 |         75        6.54       56.98
          8 |         25        2.18       59.16
          9 |         63        5.50       64.66
         10 |         23        2.01       66.67
         11 |         62        5.41       72.08
         12 |        138       12.04       84.12
         13 |         26        2.27       86.39
         14 |          4        0.35       86.74
         18 |          2        0.17       86.91
         19 |          2        0.17       87.09
         61 |         31        2.71       89.79
         62 |         18        1.57       91.36
         63 |         15        1.31       92.67
         81 |         15        1.31       93.98
         82 |          6        0.52       94.50
         83 |          9        0.79       95.29
         98 |         27        2.36       97.64
         99 |         27        2.36      100.00
------------+-----------------------------------
      Total |      1,146      100.00

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