Year	Percent of GDP (Units)
1980	57.053
1981	63.966
1982	61.974
1983	64.636
1984	61.419
1985	60.686
1986	59.855
1987	57.970
1988	55.984
1989	54.380
1990	54.369
1991	55.625
1992	55.912
1993	57.058
1994	54.660
1995	52.645
1996	53.052
1997	51.602
1998	50.959
1999	50.497
2000	49.398
2001	49.379
2002	49.904
2003	51.047
2004	49.319
2005	51.862
2006	48.789
2007	48.563
2008	50.775
2009	54.681
2010	53.878
2011	55.304
2012	56.478
2013	56.116
2014	55.600
2015	53.720
2016	53.118
2017	52.030
2018	52.265
2019	51.909
2020	58.753
2021	54.845
2022	53.156
2023	54.761
2024	55.069
2025	55.302
2026	55.459
2027	55.848
2028	56.080
2029	56.194