Year	Percent of GDP (Units)
1980	36.203
1981	37.624
1982	38.600
1983	37.249
1984	37.127
1985	36.951
1986	35.982
1987	34.822
1988	34.555
1989	34.241
1990	33.505
1991	33.124
1992	32.416
1993	31.174
1994	31.767
1995	32.643
1996	32.069
1997	32.778
1998	34.057
1999	34.539
2000	35.287
2001	34.996
2002	33.983
2003	33.996
2004	34.869
2005	35.284
2006	35.608
2007	35.938
2008	35.786
2009	34.555
2010	35.475
2011	36.091
2012	36.062
2013	36.463
2014	35.611
2015	35.805
2016	36.296
2017	36.652
2018	36.599
2019	36.253
2020	36.798
2021	38.019
2022	39.680
2023	38.635
2024	39.474
2025	39.871
2026	39.640
2027	39.578
2028	39.647
2029	39.682