Year	% of GDP
1989	2.28201007843018
1990	2.32498002052307
1991	2.54800009727478
1992	3.00501990318298
1994	3.64708995819092
1995	3.69255995750427
1998	3.36528992652893
1999	3.53536009788513
2000	3.99243998527527
2001	4.24104022979736
2002	4.45495986938477
2003	5.07257986068726
2004	4.72670984268188
2005	4.84568977355957
2006	4.69992017745972
2007	4.69050979614258
2008	4.82006978988647
2009	5.18794012069702
2010	5.15922021865845
2011	5.10564994812012
2012	5.10309982299805
2013	4.69605016708374
2014	5.25747013092041
2015	5.22942018508911
2016	4.90681982040405
2017	4.51821994781494
2018	4.2542200088501
2020	4.62572002410889