Year	% of GDP
2000	3.3970033945718168
2001	3.5104395462750593
2002	3.5229191156363564
2003	3.97611243917499
2004	3.9535502279530674
2005	4.022836580107009
2006	4.131668252089693
2007	4.060362974325135
2008	3.9452830130803656
2009	4.046809464729279
2010	3.9262805418955087
2011	3.814556761084654
2012	3.82963789666248
2013	3.971950074890965
2014	3.9012910905484306
2015	3.9646669112161614
2016	3.9236858128698238
2017	3.8523508019301667
2018	3.6778419712016066
2019	3.7006818574040325
2020	3.9090218956777427
2021	4.111200024953939