Year	Percent of GDP (Units)
1984	27.386
1985	28.773
1986	23.662
1987	23.958
1988	27.366
1989	24.082
1990	25.243
1991	19.381
1992	14.750
1993	15.134
1994	17.246
1995	18.450
1996	20.579
1997	23.094
1998	24.701
1999	24.895
2000	24.494
2001	20.463
2002	18.409
2003	18.805
2004	20.230
2005	19.888
2006	21.678
2007	25.196
2008	24.649
2009	20.560
2010	20.977
2011	22.453
2012	20.969
2013	19.301
2014	20.975
2015	20.984
2016	20.222
2017	20.021
2018	21.450
2019	20.497
2020	18.759
2021	21.750
2022	22.415
2023	17.903
2024	18.697
2025	20.352
2026	20.893
2027	20.957
2028	20.934
2029	20.941