Year	Percent of GDP (Units)
1980	64.980
1981	-8.629
1982	44.989
1983	14.201
1984	15.907
1985	16.375
1986	18.624
1987	29.744
1988	30.262
1989	29.635
1990	30.467
1991	17.829
1992	21.538
1993	26.208
1994	35.487
1995	30.325
1996	39.845
1997	28.053
1998	33.996
1999	30.772
2000	27.565
2001	21.454
2002	27.620
2003	10.902
2004	21.079
2005	35.745
2006	30.445
2007	29.015
2008	26.904
2009	27.275
2010	36.622
2011	35.407
2012	38.106
2013	38.457
2014	37.477
2015	33.604
2016	29.770
2017	29.826
2018	28.368
2019	26.918
2020	21.741
2021	25.511
2022	23.021
2023	24.279
2024	25.595
2025	26.322
2026	26.332
2027	25.767
2028	25.303
2029	25.258