Year	% of GDP
1997	0.429100006818771
1999	0.568229973316193
2001	0.559480011463165
2003	0.546540021896362
2004	0.527300000190735
2005	0.578960001468658
2006	0.561179995536804
2007	0.576550006866455
2008	0.661830008029938
2009	0.625569999217987
2010	0.603470027446747
2011	0.684260010719299
2012	0.710049986839294
2013	0.814779996871948
2014	0.839980006217957
2015	0.966050028800964
2016	1.00529003143311
2017	1.15227997303009
2018	1.21370995044708
2019	1.27496004104614
2020	1.5079300403595
2021	1.45641994476318