Year	Percent of GDP (Units)
1980	28.534
1981	27.980
1982	28.941
1983	26.570
1984	27.726
1985	27.698
1986	33.118
1987	31.690
1988	30.635
1989	27.639
1990	24.758
1991	22.306
1992	21.628
1993	22.148
1994	23.011
1995	24.198
1996	22.893
1997	25.191
1998	28.244
1999	24.571
2000	21.811
2001	20.543
2002	20.322
2003	19.420
2004	21.502
2005	22.415
2006	23.923
2007	27.063
2008	25.770
2009	24.281
2010	24.974
2011	25.433
2012	25.861
2013	27.318
2014	27.199
2015	26.908
2016	27.713
2017	27.541
2018	27.717
2019	29.600
2020	31.347
2021	25.085
2022	21.690
2023	25.838
2024	24.648
2025	24.348
2026	24.425
2027	24.478
2028	24.554
2029	24.558