Year	Percent
1989	1.63814
1990	1.55479
1991	1.78548
1992	1.91668
1993	1.80778
1994	1.34132
1995	1.94474
1996	1.92976
1997	1.88228
1998	0.82692
1999	0.85666
2000	0.87224
2001	0.92556
2002	0.67289
2003	0.548
2004	0.47243
2005	0.71775
2006	0.73693
2007	1.05545
2008	2.05248
2009	4.31674
2014	0.16375