Year	%
2001	6.04
2006	7.13
2007	7.01
2008	6.82
2009	6.76
2010	6.79
2011	6.74
2012	6.6
2013	6.52
2014	6.51
2015	6.52
2016	6.44
2017	6.45
2018	6.52
2019	9.6
2020	6.47
2021	6.48