Year	%
1986	1.4
1989	1.7
1992	1.6
1996	1.5
1997	1.3
2000	1.2
2001	1.5
2002	1.3
2003	1.3
2004	1.4
2005	1.5
2006	1.4
2007	1.6
2008	1.7
2009	1.7
2010	1.8
2011	1.8
2012	1.9
2013	1.9
2014	1.9
2015	1.9
2016	1.8
2017	2.3
2018	2.3
2019	2.3
2020	2.4
2021	2.6
2022	2.6