Year	Percent of GDP (Units)
1980	25.863
1981	25.870
1982	25.467
1983	25.465
1984	27.071
1985	24.345
1986	24.513
1987	23.091
1988	24.865
1989	22.600
1990	21.587
1991	12.375
1992	7.303
1993	1.714
1994	5.392
1995	10.400
1996	8.269
1997	19.802
1998	14.091
1999	16.932
2000	15.942
2001	17.727
2002	19.906
2003	18.699
2004	19.162
2005	18.329
2006	16.793
2007	9.749
2008	14.968
2009	20.241
2010	20.798
2011	21.687
2012	21.041
2013	22.280
2014	22.741
2015	21.000
2016	22.024
2017	23.124
2018	22.170
2019	22.873
2020	20.386
2021	19.356
2022	21.978
2023	19.141
2024	18.705
2025	19.675
2026	19.348
2027	19.109
2028	18.988
2029	18.701