Year	Percent of GDP (Units)
1997	14.943
1998	8.821
1999	7.114
2000	9.166
2001	17.298
2002	18.933
2003	19.898
2004	26.156
2005	22.708
2006	21.735
2007	24.988
2008	26.420
2009	18.657
2010	17.600
2011	18.329
2012	19.269
2013	17.378
2014	16.522
2015	18.681
2016	18.078
2017	19.575
2018	22.655
2019	25.087
2020	24.188
2021	25.172
2022	26.513
2023	21.374
2024	22.671
2025	23.123
2026	23.274
2027	23.206
2028	23.193
2029	23.214
