Year	%
2001	5.26
2006	8.37
2007	7.35
2008	7.04
2009	4.19
2010	3.76
2011	3.37
2012	3.15
2013	2.99
2014	3.1
2015	2.49
2016	2.6
2017	2.88
2018	2.95
2019	5.32
2020	2.95
2021	3.16