Year	Percent of GDP (Units)
1980	13.831
1981	15.485
1982	13.775
1983	14.685
1984	10.191
1985	12.130
1986	15.326
1987	17.382
1988	10.133
1989	3.418
1990	11.939
1991	10.347
1992	13.816
1993	19.671
1994	21.619
1995	20.446
1996	20.130
1997	23.634
1998	19.088
1999	16.604
2000	16.330
2001	14.523
2002	13.426
2003	12.951
2004	9.992
2005	11.987
2006	14.606
2007	29.871
2008	32.438
2009	30.478
2010	27.018
2011	25.141
2012	33.766
2013	34.711
2014	31.020
2015	33.844
2016	32.752
2017	35.748
2018	33.353
2019	32.355
2020	24.466
2021	29.331
2022	30.402
2023	36.750
2024	32.696
2025	31.429
2026	31.536
2027	31.898
2028	32.625
2029	32.899