Year	Percent of GDP (Units)
1980	28.783
1981	28.831
1982	25.627
1983	21.442
1984	22.932
1985	21.984
1986	25.023
1987	25.058
1988	24.366
1989	23.844
1990	22.865
1991	19.109
1992	18.493
1993	19.669
1994	24.414
1995	22.021
1996	22.129
1997	22.918
1998	20.112
1999	18.971
2000	17.339
2001	17.968
2002	18.100
2003	20.627
2004	20.068
2005	20.903
2006	21.950
2007	21.325
2008	22.248
2009	18.916
2010	23.835
2011	24.662
2012	21.264
2013	22.017
2014	22.659
2015	21.879
2016	19.806
2017	20.600
2018	22.782
2019	21.685
2020	20.041
2021	23.998
2022	27.686
2023	22.019
2024	22.594
2025	22.383
2026	22.772
2027	23.018
2028	23.160
2029	23.136