Year	%
2001	9.67
2004	7.79
2005	6.18
2006	9.27
2007	6.48
2008	9.51
2009	7.64
2010	13.46
2011	9.51
2012	8.79
2013	8.35
2014	8.03
2015	9.66
2016	9.91
2017	12.02
2018	9.33
2019	63.77
2020	9.59
2021	9.92