Year	%
2000	0.4
2001	0.4
2002	0.5
2003	0.6
2004	0.5
2005	0.4
2006	0.7
2007	0.6
2008	0.6
2009	0.5
2014	0.8
2015	0.5
2016	0.7
2017	0.9
2019	0.8