Year	Percent of GDP (Units)
1998	15.918
1999	15.456
2000	16.183
2001	17.000
2002	17.892
2003	19.638
2004	19.291
2005	19.672
2006	20.734
2007	20.558
2008	20.933
2009	20.150
2010	21.470
2011	20.323
2012	18.004
2013	18.493
2014	17.738
2015	19.190
2016	19.067
2017	19.565
2018	19.459
2019	19.415
2020	18.390
2021	18.693
2022	18.961
2023	18.237
2024	18.483
2025	18.621
2026	18.767
2027	18.990
2028	19.112
2029	19.163