Year	Percent
1996	4.41
1997	5.49
1998	5.62
2000	2.18
2001	1.49
2003	3.69
2004	2.65
2005	0.79
2006	1.29
2007	1.07
2008	1.69
2009	1.51
2010	1.61
2011	0.79
2012	1.01
2013	1.11
2014	1.22
2015	1.17
2016	1.84
2017	1.31
2018	1.35
2019	1.66
2020	2.99