Year	%
2002	4.51
2003	6.13
2004	6.79
2005	4.24
2006	3.92
2007	4.33
2008	5.17
2009	5.25
2010	5.45
2011	5.45
2012	3.67
2013	3.81
2014	3.03
2015	3.08
2016	3.09
2017	4.64
2018	4.14
2019	4.2
2020	3.15
2021	3.24