Year	Percent of GDP (Units)
1980	17.869
1981	14.456
1982	11.064
1983	10.769
1984	12.238
1985	13.842
1986	18.144
1987	18.738
1988	20.213
1989	18.353
1990	18.510
1991	19.436
1992	17.586
1993	16.691
1994	19.768
1995	19.563
1996	16.328
1997	14.594
1998	13.910
1999	12.830
2000	15.847
2001	15.067
2002	16.019
2003	17.790
2004	18.888
2005	20.318
2006	21.090
2007	20.472
2008	21.042
2009	20.081
2010	18.893
2011	20.090
2012	18.965
2013	18.947
2014	18.805
2015	17.401
2016	18.715
2017	18.417
2018	16.993
2019	16.797
2020	15.700
2021	13.280
2022	13.557
2023	10.140
2024	9.875
2025	11.155
2026	11.363
2027	11.068
2028	11.015
2029	10.817