Year	Percent of GDP (Units)
1990	20.561
1991	27.480
1992	23.489
1993	20.842
1994	25.834
1995	25.663
1996	25.264
1997	23.762
1998	23.652
1999	24.995
2000	25.153
2001	25.683
2002	25.609
2003	22.929
2004	21.809
2005	30.978
2006	30.522
2007	31.654
2008	25.644
2009	19.057
2010	19.613
2011	23.130
2012	22.862
2013	23.504
2014	26.666
2015	27.406
2016	27.605
2017	27.694
2018	27.239
2019	26.925
2020	26.416
2021	25.715
2022	30.497
2023	32.339
2024	29.975
2025	29.290
2026	29.218
2027	29.184
2028	29.117
2029	29.091