Frequencies for first 10,000 rows of aoi1 variable in cevent dataset :

    Area of |
   Impact 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,543       15.43       15.43
          1 |        179        1.79       17.22
          2 |         44        0.44       17.66
          3 |        117        1.17       18.83
          4 |         32        0.32       19.15
          5 |         30        0.30       19.45
          6 |         78        0.78       20.23
          7 |         22        0.22       20.45
          8 |         15        0.15       20.60
          9 |        178        1.78       22.38
         10 |         39        0.39       22.77
         11 |        178        1.78       24.55
         12 |      2,606       26.06       50.61
         13 |         46        0.46       51.07
         14 |        300        3.00       54.07
         18 |         85        0.85       54.92
         55 |      3,743       37.43       92.35
         61 |         62        0.62       92.97
         62 |         39        0.39       93.36
         63 |          6        0.06       93.42
         81 |         75        0.75       94.17
         82 |         35        0.35       94.52
         83 |         18        0.18       94.70
         98 |        140        1.40       96.10
         99 |        390        3.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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