Year	Percent of GDP (Units)
1998	16.017
1999	16.702
2000	17.788
2001	19.192
2002	19.747
2003	22.196
2004	19.441
2005	20.625
2006	20.534
2007	22.297
2008	21.380
2009	24.975
2010	23.721
2011	21.224
2012	23.466
2013	24.457
2014	22.755
2015	24.174
2016	22.231
2017	21.529
2018	20.480
2019	19.811
2020	21.251
2021	20.125
2022	18.704
2023	19.850
2024	20.839
2025	21.040
2026	21.256
2027	21.500
2028	21.600
2029	21.709