Year	Percent of GDP (Units)
1980	11.531
1981	9.584
1982	1.208
1983	-3.555
1984	7.124
1985	5.006
1986	2.605
1987	21.274
1988	20.252
1989	16.627
1990	26.947
1991	15.647
1992	19.946
1993	28.028
1994	41.939
1995	30.604
1996	29.425
1997	16.313
1998	16.526
1999	12.030
2000	20.584
2001	-3.143
2002	13.101
2003	9.576
2004	13.892
2005	16.806
2006	17.285
2007	18.242
2008	8.421
2009	12.434
2010	17.242
2011	12.449
2012	16.969
2013	26.509
2014	15.113
2015	15.709
2016	11.030
2017	11.923
2018	26.007
2019	24.154
2020	9.448
2021	15.382
2022	16.133
2023	16.956
2024	17.190
2025	17.839
2026	17.390
2027	16.765
2028	16.537
2029	16.708