Year	Percent of GDP (Units)
1990	28.973
1991	26.831
1992	21.795
1993	23.130
1994	24.749
1995	23.242
1996	26.251
1997	26.570
1998	25.300
1999	23.742
2000	25.609
2001	29.566
2002	35.746
2003	28.707
2004	24.724
2005	26.565
2006	32.364
2007	27.664
2008	27.898
2009	27.157
2010	27.981
2011	28.322
2012	26.217
2013	28.115
2014	28.691
2015	25.261
2016	23.527
2017	22.589
2018	22.369
2019	21.643
2020	32.682
2021	31.244
2022	31.808
2023	30.049
2024	34.628
2025	28.948
2026	28.432
2027	27.925
2028	27.389
2029	27.072