Year	%
2000	2.72
2001	4.18
2002	2.98
2003	3.43
2004	3.26
2005	3.5
2006	3.18
2007	2.97
2008	2.41
2009	2.83
2010	2.88
2011	2.08
2012	1.73
2013	1.83
2014	2.39
2015	2.38
2016	2.45
2017	1.99
2018	1.92
2019	1.72
2020	1.28
2021	0.72