Year	%
1990	2.3
1992	1.6
1997	0.5
1999	0.3
2000	0.2
2001	0.5
2002	0.4
2004	0.9
2005	0.5
2006	0.6
2007	0.8
2008	0.9
2009	0.8
2011	1.1
2012	0.9
2013	1
2014	1.1
2015	1.1
2016	1
2017	1.1
2018	1.4
2019	1.7
2020	1.5
2021	1.8