Year	Percent of GDP (Units)
1980	19.114
1981	12.025
1982	6.787
1983	10.216
1984	10.263
1985	11.293
1986	15.805
1987	18.350
1988	26.162
1989	24.242
1990	41.426
1991	41.559
1992	35.085
1993	29.622
1994	33.192
1995	26.159
1996	25.400
1997	27.235
1998	34.001
1999	26.463
2000	20.901
2001	24.276
2002	23.730
2003	23.357
2004	21.945
2005	14.122
2006	10.500
2007	14.150
2008	8.678
2009	3.809
2010	5.734
2011	7.056
2012	16.850
2013	23.061
2014	24.164
2015	25.482
2016	20.713
2017	19.076
2018	14.590
2019	17.459
2020	19.327
2021	16.245
2022	9.087
2023	17.458
2024	17.386
2025	16.169
2026	15.617
2027	15.495
2028	15.020
2029	14.976