Year	Percent of GDP (Units)
1990	22.593
1991	25.084
1992	26.537
1993	26.879
1994	23.909
1995	25.074
1996	22.228
1997	29.697
1998	45.497
1999	25.497
2000	20.297
2001	27.833
2002	25.722
2003	21.250
2004	20.874
2005	20.768
2006	21.135
2007	19.388
2008	18.929
2009	22.598
2010	23.091
2011	22.074
2012	23.950
2013	34.675
2014	23.755
2015	22.253
2016	21.848
2017	18.114
2018	17.130
2019	17.461
2020	19.811
2021	16.594
2022	19.101
2023	21.684
2024	22.965
2025	23.879
2026	24.307
2027	24.795
2028	25.204
2029	25.715
