Year	%
2005	4.07
2006	4.33
2007	4.27
2008	4.49
2009	4.81
2010	4.3
2011	4.36
2012	4.73
2013	5.45
2014	5.61
2015	5.94
2016	5.98
2017	6.33
2018	6.47
2019	6.31
2020	5.93
2021	5.94