Year	Percent of GDP (Units)
1980	21.669
1981	27.854
1982	25.553
1983	26.861
1984	26.886
1985	25.814
1986	26.422
1987	25.662
1988	21.720
1989	17.955
1990	18.449
1991	17.326
1992	14.128
1993	15.698
1994	14.411
1995	15.321
1996	16.182
1997	17.168
1998	17.254
1999	17.669
2000	17.192
2001	18.774
2002	19.441
2003	18.095
2004	18.868
2005	18.671
2006	17.776
2007	18.378
2008	19.754
2009	18.560
2010	18.228
2011	18.732
2012	18.001
2013	18.652
2014	19.728
2015	18.250
2016	19.818
2017	19.445
2018	19.538
2019	18.935
2020	17.743
2021	17.942
2022	18.689
2023	18.590
2024	19.013
2025	19.460
2026	20.101
2027	20.951
2028	21.823
2029	22.938