Year	Percent of GDP (Units)
1980	-98.140
1981	-93.872
1982	41.415
1983	40.638
1984	38.659
1985	37.329
1986	20.988
1987	26.268
1988	19.322
1989	21.019
1990	18.511
1991	14.145
1992	23.146
1993	19.717
1994	29.001
1995	24.935
1996	25.310
1997	22.768
1998	22.609
1999	28.364
2000	21.580
2001	21.415
2002	27.261
2003	19.598
2004	24.663
2005	35.146
2006	32.057
2007	45.276
2008	42.294
2009	29.795
2010	32.116
2011	28.462
2012	22.398
2013	24.406
2014	25.433
2015	32.272
2016	29.593
2017	27.386
2018	29.008
2019	33.679
2020	8.764
2021	28.360
2022	35.018
2023	20.911
2024	16.907
2025	16.200
2026	12.435
2027	9.056
2028	11.871
2029	13.230