Year	%
1995	7.48
1997	8.37
2002	7.7
2006	4.89
2007	5.46
2008	5
2009	4.07
2010	4.5
2011	4.11
2012	4.16
2013	4.71
2014	4.28
2015	4.08
2016	4.48
2017	2.59
2018	2.3
2019	4.31
2020	2.16
2021	2.16