Year	Percent of GDP (Units)
1990	22.902
1991	20.104
1992	19.022
1993	18.241
1994	18.937
1995	18.854
1996	20.805
1997	20.737
1998	19.478
1999	20.137
2000	19.387
2001	19.547
2002	19.767
2003	21.505
2004	20.459
2005	21.156
2006	21.577
2007	22.521
2008	26.502
2009	26.517
2010	26.482
2011	26.622
2012	27.000
2013	26.669
2014	26.949
2015	26.557
2016	26.523
2017	25.018
2018	24.970
2019	25.242
2020	27.789
2021	26.755
2022	28.579
2023	28.657
2024	30.256
2025	27.055
2026	26.459
2027	26.444
2028	26.218
2029	26.182