Year	Percent of GDP (Units)
1981	14.191
1982	13.044
1983	11.655
1984	13.434
1985	11.490
1986	12.076
1987	10.974
1988	11.356
1989	12.836
1990	13.813
1991	15.455
1992	18.833
1993	18.958
1994	20.358
1995	20.944
1996	15.355
1997	15.083
1998	18.651
1999	17.301
2000	17.669
2001	17.714
2002	17.065
2003	18.429
2004	18.141
2005	18.605
2006	20.075
2007	20.800
2008	20.173
2009	14.055
2010	16.672
2011	17.790
2012	17.710
2013	17.019
2014	16.397
2015	16.017
2016	15.968
2017	16.677
2018	18.372
2019	18.345
2020	17.212
2021	23.355
2022	23.209
2023	19.279
2024	19.262
2025	20.036
2026	20.611
2027	21.051
2028	21.126
2029	21.194