Year	Percent of GDP (Units)
1980	15.938
1981	17.288
1982	19.613
1983	16.279
1984	16.234
1985	12.426
1986	12.475
1987	12.370
1988	9.638
1989	9.588
1990	5.725
1991	12.492
1992	21.071
1993	21.619
1994	21.016
1995	22.826
1996	28.368
1997	20.822
1998	28.778
1999	22.568
2000	30.880
2001	30.880
2002	30.493
2003	30.451
2004	30.894
2005	27.557
2006	23.301
2007	25.731
2008	30.804
2009	42.821
2010	28.197
2011	26.424
2012	26.668
2013	26.143
2014	27.500
2015	34.202
2016	27.215
2017	24.151
2018	21.355
2019	20.967
2020	25.416
2021	24.908
2022	24.135
2023	23.164
2024	22.545
2025	22.742
2026	23.231
2027	23.619
2028	23.910
2029	24.175