Year	Percent of GDP (Units)
1980	22.460
1981	22.123
1982	20.489
1983	22.687
1984	21.618
1985	21.553
1986	17.729
1987	20.304
1988	19.892
1989	18.012
1990	20.248
1991	20.800
1992	22.112
1993	23.346
1994	24.943
1995	20.763
1996	21.328
1997	21.802
1998	22.122
1999	23.541
2000	21.785
2001	21.357
2002	22.429
2003	20.803
2004	20.197
2005	20.932
2006	21.201
2007	21.191
2008	20.260
2009	22.308
2010	20.494
2011	16.997
2012	17.409
2013	14.693
2014	14.538
2015	12.595
2016	11.700
2017	11.619
2018	12.554
2019	11.991
2020	6.839
2021	9.307
2022	5.541
2023	9.677
2024	8.736
2025	8.804
2026	9.086
2027	8.842
2028	8.293
2029	6.940