Year	Percent of GDP (Units)
1980	22.384
1981	22.817
1982	23.450
1983	21.255
1984	21.334
1985	21.404
1986	19.722
1987	19.438
1988	21.170
1989	22.854
1990	24.415
1991	20.923
1992	22.419
1993	22.844
1994	22.166
1995	21.099
1996	19.974
1997	19.583
1998	21.924
1999	20.444
2000	26.963
2001	18.745
2002	16.818
2003	17.840
2004	16.621
2005	18.427
2006	17.316
2007	16.797
2008	17.016
2009	16.360
2010	15.046
2011	16.170
2012	15.814
2013	16.094
2014	15.431
2015	15.610
2016	15.328
2017	15.310
2018	15.503
2019	15.505
2020	15.246
2021	15.331
2022	15.631
2023	15.931
2024	16.231
2025	16.531
2026	16.831
2027	17.131
2028	17.431
2029	17.731