Year	% of GDP
2000	6.65441465
2001	5.63960838
2002	6.27723551
2003	5.32621098
2004	5.42000151
2005	5.38602448
2006	5.43720865
2007	4.95501947
2008	4.65938807
2009	4.46430683
2010	4.11944056
2011	4.36967373
2012	4.26872253
2013	3.91374874
2014	3.05234575
2015	3.1761291
2016	3.19523716
2017	3.35449266
2018	3.34384227
2019	3.158566
2020	3.72824287
2021	3.18962693