Year	% of GDP
2000	4.15
2001	4.26
2002	4.08
2003	4.39
2004	4.4
2005	4.52
2006	3.99
2007	3.99
2008	3.48
2009	3.48
2010	3.85
2011	3.09
2012	3.44
2013	3.57
2014	3.37
2015	3.69
2016	4.19
2017	3.98
2018	3.9
2019	4.13
2020	4.54
2021	4.87