Year	Percent of GDP (Units)
1980	13.405
1981	10.940
1982	11.839
1983	12.837
1984	12.661
1985	12.978
1986	13.368
1987	9.937
1988	9.737
1989	13.388
1990	14.746
1991	12.079
1992	13.142
1993	12.401
1994	12.006
1995	10.954
1996	9.736
1997	31.226
1998	28.267
1999	36.951
2000	35.491
2001	30.332
2002	31.730
2003	31.641
2004	32.670
2005	31.599
2006	29.020
2007	28.328
2008	27.721
2009	26.780
2010	26.685
2011	25.800
2012	17.053
2013	15.002
2014	12.738
2015	11.974
2016	15.755
2017	15.024
2018	16.683
2019	25.500
2020	4.405
2021	5.276
2022	14.912
2023	14.519
2024	16.407
2025	18.418
2026	19.208
2027	18.762
2028	18.620
2029	18.617