Year	Percent
2005	2.27
2006	1.41
2007	1.19
2008	1.04
2009	1.4
2010	1.69
2011	1.86
2012	0.65
2013	1.32
2014	1.09
2015	0.92
2016	1.72
2017	2
2018	1.69
2019	1.37
2020	1.05