Year	% of GDP
1992	5.35694980621338
1993	4.44960021972656
1994	3.71250009536743
1995	4.29757976531982
1996	4.12440013885498
1997	4.1223201751709
1999	4.1072998046875
2000	3.86468005180359
2001	3.93569993972778
2002	4.24539995193481
2003	4.20956993103027
2004	4.10157012939453
2005	3.75995993614197
2006	3.70770001411438
2007	3.52321004867554
2008	3.52165007591248
2009	4.00641012191772
2010	4.0447998046875
2011	3.89836001396179
2012	3.8590099811554
2013	4.06895017623901
2014	4.21589994430542
2015	4.57843017578125
2016	3.90078997612
2017	3.93220996856689
2018	3.95290994644165
2019	4.27319002151489
2020	4.76467990875244
2021	4.26000022888184