Year	Percent of GDP (Units)
1980	2.875
1981	1.966
1982	2.715
1983	2.452
1984	3.854
1985	5.115
1986	6.465
1987	6.897
1988	6.667
1989	6.930
1990	5.021
1991	6.051
1992	5.094
1993	7.305
1994	8.405
1995	9.074
1996	7.328
1997	6.279
1998	7.033
1999	5.891
2000	8.616
2001	10.877
2002	8.500
2003	10.859
2004	12.560
2005	11.809
2006	12.058
2007	12.726
2008	11.770
2009	12.158
2010	12.409
2011	14.053
2012	13.649
2013	12.448
2014	13.154
2015	14.616
2016	13.145
2017	13.616
2018	14.104
2019	14.971
2020	14.068
2021	15.182
2022	15.839
2023	15.731
2024	16.667
2025	17.274
2026	18.198
2027	18.116
2028	18.034
2029	18.034