Frequencies for division variable in impact2003 dataset :

     Census |
   Division |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        175        4.05        4.05
          2 |        471       10.90       14.95
          3 |        664       15.36       30.31
          4 |        644       14.90       45.21
         40 |         52        1.20       46.41
          5 |        399        9.23       55.65
          6 |        467       10.81       66.45
          7 |        626       14.48       80.93
          8 |        297        6.87       87.81
          9 |        527       12.19      100.00
------------+-----------------------------------
      Total |      4,322      100.00

by Jean Roth , jroth@nber.org , 17 Mar 2016