Year	Percent
2006	2.98043
2007	2.91459
2008	3.58977
2009	3.64863
2010	2.69061
2011	2.34544
2012	2.36886
2013	2.62415
2014	2.21677
2015	2.15309
2016	2.08071
2017	1.56962
2018	1.63483
2019	1.72085
2020	1.84026
2021	1.52049
2022	1.44327