Year	Percent of GDP (Units)
1980	11.152
1981	8.591
1982	8.344
1983	14.191
1984	16.616
1985	16.435
1986	17.868
1987	19.352
1988	22.878
1989	20.730
1990	25.522
1991	28.341
1992	26.814
1993	25.800
1994	25.915
1995	23.617
1996	23.745
1997	21.690
1998	18.757
1999	18.693
2000	16.793
2001	17.366
2002	15.830
2003	17.747
2004	20.720
2005	15.033
2006	17.435
2007	15.486
2008	6.106
2009	12.958
2010	13.418
2011	8.539
2012	10.987
2013	12.151
2014	14.116
2015	18.112
2016	21.063
2017	21.493
2018	22.182
2019	22.770
2020	18.650
2021	19.689
2022	23.217
2023	24.881
2024	24.152
2025	24.067
2026	23.989
2027	23.039
2028	21.969
2029	21.001