Year	Percent of GDP (Units)
1980	27.471
1981	27.626
1982	27.252
1983	27.331
1984	23.449
1985	20.408
1986	19.086
1987	22.038
1988	21.541
1989	22.567
1990	24.908
1991	20.939
1992	16.289
1993	8.996
1994	13.257
1995	18.087
1996	21.662
1997	22.230
1998	22.210
1999	20.202
2000	21.094
2001	20.656
2002	18.361
2003	16.346
2004	18.069
2005	18.784
2006	18.990
2007	17.579
2008	17.866
2009	20.335
2010	21.456
2011	21.359
2012	21.754
2013	25.113
2014	25.242
2015	25.859
2016	26.030
2017	25.104
2018	26.968
2019	27.578
2020	26.131
2021	26.442
2022	25.549
2023	25.913
2024	25.215
2025	26.121
2026	26.409
2027	26.806
2028	27.455
2029	27.923