Year	%
1992	2
1993	2.1
1996	5.7
2002	7
2004	7.9
2005	7.7
2006	7
2007	5.9
2008	5.8
2009	6.2
2010	7.1
2011	7.7
2012	6.3
2013	7
2014	6.1
2015	6.5
2016	5.4
2017	4.7
2018	4.9
2019	4.7
2020	5.6
2021	5.7