Year	% of GDP
1988	3.076859979218583
1989	3.0500120784146905
1990	3.2438043945910198
1991	2.6842925207944717
1992	3.0857778748065634
1993	3.157852336625612
1994	3.0938739023545914
1995	2.628997838267638
1996	2.53279469881055
1997	2.3768377155484988
1998	2.5163763887724286
1999	2.6367540571842483
2000	2.5893025365140074
2001	2.5899191429594937
2002	2.5967916208812767
2003	4.065621413165774
2004	3.8856337997375814
2005	4.1726216079359455
2006	11.380614972538128
2007	11.437860187849726
2008	12.67171937744668
2009	12.563670689452454
2010	10.633287047783382
2011	10.471272480139495
2012	10.529863904725836
2013	10.80078156459472
2014	11.082498072990717
2015	12.118736289750947
2016	10.926678079743759
2017	10.021586832549085
2018	12.073249946949137
2019	10.400358980041117
2020	9.506109497625085
2021	11.436674736317656
2022	11.43667473646563