Year	Percent of GDP
1980	1.181
1981	1.381
1982	-0.021
1983	1.332
1984	2.036
1985	2.118
1986	4.659
1987	4.614
1988	7.151
1989	10.032
1990	6.212
1991	1.975
1992	4.707
1993	3.788
1994	1.595
1995	2.515
1996	8.469
1997	6.832
1998	7.09
1999	8.568
2000	8.073
2001	15.419
2002	2.851
2003	10.794
2004	16.663
2005	9.445
2006	14.451
2007	19.59
2008	22.91
2009	15.102
2010	12.931
2011	9.968
2012	8.914
2013	9.635
2014	15.265
2015	14.911
2016	19.122
2017	18.393
2018	19.986
2019	19.371
2020	18.523
2021	18.445
2022	18.113
2023	18.013
2024	17.844