Year	%
2000	7.5
2001	7.3
2002	7.1
2003	7
2004	7
2005	6.9
2006	6.6
2007	6.5
2008	6.4
2009	6.3
2010	6.3
2011	6.2
2012	6
2013	6
2014	5.9
2015	5.8
2016	5.9
2017	5.8
2018	5.7
2019	5.7