year
|
East (39)
|
North (34)
|
Southeast (24)
|
West (338)
|
1992
|
12.369
|
0.9879
|
20.7225
|
19.6069
|
1993
|
13.246
|
0.8735
|
19.025
|
19.8092
|
1994
|
12.0156
|
0.9012
|
16.355
|
20.3208
|
1995
|
13.4582
|
0.9197
|
19.4372
|
20.9924
|
1996
|
17.4524
|
0.9753
|
17.9283
|
20.8333
|
1997
|
13.8132
|
1.1526
|
27.6046
|
21.051
|
1998
|
14.1748
|
1.2418
|
35.0303
|
21.1278
|
1999
|
11.4461
|
1.2545
|
23.139
|
21.1245
|
2000
|
12.3082
|
1.247
|
27.0664
|
21.3614
|
2001
|
11.8711
|
1.1819
|
22.806
|
21.2625
|
2002
|
10.9242
|
1.1978
|
18.6698
|
20.6097
|
2003
|
10.2897
|
1.5021
|
22.432
|
21.1762
|
2004
|
10.7023
|
1.6205
|
20.4879
|
21.5223
|
2005
|
11.2481
|
1.333
|
22.0476
|
21.7234
|
2006
|
11.9621
|
0.9993
|
22.4525
|
21.1042
|
2007
|
11.2329
|
1.1352
|
21.9833
|
21.0648
|
2008
|
13.281
|
1.2477
|
21.4259
|
20.5112
|
2009
|
12.3522
|
1.2449
|
24.1803
|
20.3873
|
2010
|
14.9623
|
1.0206
|
21.1912
|
20.8284
|
2011
|
10.9546
|
1.1725
|
22.3828
|
20.0666
|