Year	Percent of GDP (Units)
1981	54.568
1982	22.578
1983	27.090
1984	32.275
1985	23.135
1986	31.669
1987	19.647
1988	24.616
1989	39.572
1990	20.336
1991	-242.188
1992	-2.270
1993	10.443
1994	12.947
1995	18.450
1996	22.568
1997	25.943
1998	8.537
1999	16.809
2000	38.899
2001	23.850
2002	11.165
2003	19.674
2004	26.221
2005	37.210
2006	44.612
2007	36.049
2008	40.871
2009	26.692
2010	32.044
2011	42.937
2012	45.458
2013	40.302
2014	33.438
2015	3.501
2016	-4.626
2017	7.962
2018	14.395
2019	12.878
2020	4.513
2021	26.371
2022	34.527
2023	32.784
2024	30.115
2025	27.134
2026	23.950
2027	21.326
2028	19.074
2029	17.068