Year	Percent
1995	2.76605
1996	2.60369
1997	3.01551
1998	1.89594
1999	1.3635
2000	0.18274
2001	1.98713
2002	1.90222
2003	1.32282
2004	2.32407
2005	0.97035
2006	1.34301
2007	2.55822
2008	1.23427
2009	1.37446
2010	0.82605