Year
|
East (12)
|
North (242)
|
North (276)
|
West (54)
|
West (57)
|
1992
|
0.036
|
0.024
|
|
0.105
|
|
1993
|
0.033
|
0.025
|
|
0.103
|
|
1994
|
0.033
|
0.026
|
|
0.09
|
|
1995
|
0.049
|
0.023
|
|
0.085
|
|
1996
|
0.034
|
0.022
|
|
0.077
|
|
1997
|
0.05
|
0.024
|
|
0.075
|
|
1998
|
0.036
|
0.023
|
|
0.071
|
|
1999
|
0.037
|
0.026
|
|
0.067
|
|
2000
|
0.043
|
0.023
|
|
0.067
|
|
2001
|
0.043
|
0.023
|
|
0.067
|
|
2002
|
0.036
|
0.026
|
|
0.066
|
|
2003
|
0.03
|
0.023
|
|
0.068
|
|
2004
|
0.03
|
0.021
|
|
0.069
|
|
2005
|
0.035
|
0.024
|
|
0.053
|
|
2006
|
0.039
|
0.022
|
|
0.054
|
|
2007
|
0.03
|
0.021
|
|
0.048
|
|
2008
|
0.033
|
0.022
|
|
0.056
|
|
2009
|
0.036
|
0.023
|
|
0.056
|
|
2010
|
0.034
|
0.022
|
|
0.047
|
|
2011
|
0.036
|
0.022
|
|
0.047
|
|
2012
|
0.026
|
0.022
|
|
0.047
|
|