Year	Percent of GDP (Units)
1990	19.015
1991	17.642
1992	18.801
1993	17.949
1994	17.838
1995	18.243
1996	19.246
1997	18.081
1998	20.660
1999	18.785
2000	18.087
2001	17.114
2002	19.300
2003	18.740
2004	20.118
2005	19.285
2006	21.850
2007	21.346
2008	21.025
2009	18.373
2010	22.287
2011	20.364
2012	19.968
2013	18.927
2014	20.140
2015	24.104
2016	24.512
2017	20.737
2018	19.830
2019	18.771
2020	19.735
2021	19.369
2022	19.346
2023	20.177
2024	20.545
2025	20.597
2026	20.613
2027	20.710
2028	20.760
2029	20.957