Year	%
1990	10.3
1995	6.1
1997	6.6
1999	7.1
2001	7.1
2002	6.6
2003	7.1
2004	7.8
2005	7.9
2006	7.6
2007	7.8
2008	8
2009	8.4
2010	8.1
2011	7.7
2012	8.8
2013	8.6
2014	8.3
2015	8.7
2016	8.6
2017	8.7
2018	9.2
2019	9.2
2020	9.6
2021	9.8
2022	9.5