Year	%
1995	6.98
1997	8.68
2002	7.5
2006	5.09
2007	5.04
2008	5.05
2009	4.47
2010	4.54
2011	4.38
2012	4.38
2013	4.46
2014	4.48
2015	4.48
2016	4.48
2017	4.48
2018	4.48
2019	6.48
2020	4.48
2021	4.53