Year	Percent of GDP (Units)
1983	19.956
1984	23.058
1985	22.865
1986	23.076
1987	23.902
1988	19.455
1989	22.685
1990	22.497
1991	21.765
1992	18.459
1993	18.644
1994	18.282
1995	18.172
1996	19.622
1997	21.236
1998	19.864
1999	19.509
2000	20.760
2001	20.236
2002	19.067
2003	18.857
2004	21.462
2005	23.461
2006	24.782
2007	24.921
2008	22.488
2009	19.169
2010	21.456
2011	21.903
2012	21.227
2013	20.740
2014	20.785
2015	18.296
2016	16.122
2017	15.892
2018	17.739
2019	16.317
2020	14.656
2021	15.127
2022	16.665
2023	18.342
2024	18.222
2025	18.720
2026	19.359
2027	20.032
2028	20.116
2029	20.727