Year	Percent of GDP (Units)
1980	46.129
1981	42.578
1982	25.661
1983	8.747
1984	12.159
1985	5.007
1986	3.150
1987	4.899
1988	12.476
1989	9.441
1990	12.154
1991	-0.847
1992	10.023
1993	12.069
1994	12.599
1995	16.571
1996	19.000
1997	18.962
1998	14.002
1999	21.768
2000	26.871
2001	24.703
2002	25.955
2003	32.489
2004	39.933
2005	47.594
2006	49.605
2007	50.386
2008	54.180
2009	38.318
2010	45.014
2011	51.925
2012	50.456
2013	45.868
2014	39.488
2015	26.361
2016	27.226
2017	30.492
2018	34.741
2019	32.881
2020	24.212
2021	30.221
2022	40.095
2023	33.283
2024	30.080
2025	29.466
2026	29.085
2027	28.237
2028	27.324
2029	26.717