Year	Percent of GDP (Units)
1980	3.282
1981	4.349
1982	5.603
1983	5.857
1984	5.406
1985	5.000
1986	3.569
1987	5.357
1988	7.120
1989	4.951
1990	6.915
1991	5.435
1992	3.049
1993	2.599
1994	1.931
1995	2.929
1996	1.939
1997	0.101
1998	5.338
1999	2.598
2000	4.706
2001	2.487
2002	5.750
2003	1.625
2004	2.878
2005	1.607
2006	0.435
2007	9.793
2008	2.478
2009	5.274
2010	7.037
2011	1.318
2012	1.840
2013	2.156
2014	0.870
2015	-3.732
2016	-5.843
2017	-5.946
2018	-4.156
2019	-4.750
2020	-6.229
2021	-5.144
2022	9.963
2023	6.920
2024	3.445
2025	2.758
2026	1.627
2027	2.364
2028	2.941
2029	3.190