Year	%
2001	3.64
2006	8.54
2007	8.01
2008	8.03
2009	7.79
2010	7.95
2011	7.8
2012	7.11
2013	6.82
2014	6.78
2015	6.82
2016	6.53
2017	6.51
2018	6.79
2019	18.92
2020	6.6
2021	6.63