Year	Percent of GDP (Units)
1997	13.172
1998	12.596
1999	13.402
2000	14.093
2001	14.892
2002	16.475
2003	17.224
2004	17.333
2005	15.501
2006	16.950
2007	16.321
2008	18.480
2009	16.144
2010	16.049
2011	15.965
2012	19.785
2013	18.477
2014	17.000
2015	16.681
2016	16.974
2017	17.064
2018	16.352
2019	17.861
2020	22.093
2021	18.538
2022	18.513
2023	19.258
2024	18.855
2025	17.961
2026	17.848
2027	17.678
2028	17.487
2029	17.337