Year	%
2000	18.47
2001	18.77
2002	17.99
2003	17.82
2004	17.37
2005	18.08
2006	17.98
2008	17.53
2009	17.65
2010	17.88
2011	17.93
2012	7.7
2013	7.58
2014	6.91
2015	6.62
2016	6.6
2017	7.05
2018	7.48
2019	14.17
2020	7.6
2021	8.97