Year	East (36)	North (34)	Southeast (24)	West (304)
1992	10.3	1	22.2
1993	11.3	0.9	19
1994	10.1	0.9	16.4
1995	12.2	0.9	19.4
1996	16.6	1	17.9
1997	12.9	1.1	25.6
1998	13.2	1.2	28.8
1999	10.6	1.2	22.2
2000	10.9	1.2	24.7
2001	10.2	1.2	22.8
2002	9.1	1.2	18.7
2003	9.1	1.5	22.4
2004	9.6	1.6	20.4
2005	10.3	1.3	22
2006	10.5	1	22.5
2007	10.6	1.1	22
2008	13.2	1.2	21.4
2009	11.8	1.2	24.2
2010	11.3	1	21.1
2011	10.1	1.2	22.4
2012	10.8	1	26.3