Year	% of GDP
2000	4.6
2001	4.89
2002	5.06
2003	5.01
2004	4.91
2005	4.89
2006	5.15
2007	5.24
2008	5.22
2009	5.49
2010	5.02
2011	4.65
2012	4.44
2013	4.37
2014	4.33
2015	4.12
2016	4.28
2017	4.18
2018	4.12
2019	4.37
2020	4.62
2021	4.57