Year	Percent of GDP (Units)
1980	62.466
1981	61.906
1982	57.103
1983	53.906
1984	53.628
1985	56.145
1986	57.742
1987	57.727
1988	60.364
1989	68.687
1990	73.080
1991	70.276
1992	51.245
1993	33.217
1994	33.698
1995	8.355
1996	12.407
1997	15.294
1998	12.235
1999	7.820
2000	1.753
2001	0.400
2002	-2.765
2003	-1.432
2004	-4.344
2005	-6.937
2006	-7.056
2007	-7.268
2008	-9.891
2009	-7.329
2010	3.169
2011	5.036
2012	8.465
2013	11.957
2014	17.190
2015	18.432
2016	21.236
2017	21.819
2018	24.469
2019	26.988
2020	33.241
2021	34.345
2022	32.944
2023	34.279
2024	36.824
2025	38.895
2026	40.607
2027	41.927
2028	42.773
2029	43.642