Year	Percent of GDP (Units)
1980	36.439
1981	38.197
1982	38.276
1983	32.554
1984	27.261
1985	25.950
1986	25.511
1987	30.020
1988	31.724
1989	29.862
1990	30.433
1991	27.170
1992	27.240
1993	23.947
1994	24.708
1995	24.193
1996	24.408
1997	26.524
1998	28.317
1999	29.028
2000	28.777
2001	28.158
2002	25.904
2003	23.115
2004	23.824
2005	23.359
2006	22.926
2007	23.100
2008	23.579
2009	20.843
2010	21.126
2011	18.598
2012	15.702
2013	14.632
2014	15.317
2015	15.855
2016	15.833
2017	17.227
2018	18.290
2019	18.493
2020	19.117
2021	20.627
2022	20.651
2023	19.544
2024	19.659
2025	20.049
2026	20.264
2027	20.119
2028	20.063
2029	20.167