Year	Percent of GDP (Units)
1980	25.108
1981	24.521
1982	26.424
1983	30.088
1984	32.100
1985	32.051
1986	35.432
1987	39.178
1988	41.437
1989	38.730
1990	39.039
1991	39.051
1992	38.147
1993	38.210
1994	37.908
1995	37.695
1996	35.978
1997	36.016
1998	37.796
1999	35.403
2000	33.919
2001	31.993
2002	31.545
2003	33.056
2004	35.555
2005	33.862
2006	32.978
2007	33.598
2008	33.457
2009	33.426
2010	35.116
2011	34.756
2012	34.776
2013	34.977
2014	35.107
2015	36.433
2016	36.875
2017	37.092
2018	35.948
2019	34.846
2020	36.280
2021	36.792
2022	34.523
2023	34.201
2024	34.213
2025	34.443
2026	34.592
2027	34.644
2028	34.661
2029	34.682