Year	Percent of GDP (Units)
1980	24.480
1981	35.828
1982	31.027
1983	24.623
1984	19.581
1985	24.468
1986	20.342
1987	18.269
1988	17.269
1989	12.782
1990	13.843
1991	18.305
1992	20.992
1993	24.329
1994	22.398
1995	24.782
1996	21.439
1997	29.477
1998	17.830
1999	18.659
2000	16.843
2001	13.260
2002	11.478
2003	20.200
2004	28.904
2005	40.996
2006	46.786
2007	42.761
2008	31.282
2009	26.915
2010	29.763
2011	14.805
2012	12.074
2013	15.668
2014	19.355
2015	16.351
2016	16.357
2017	17.342
2018	22.669
2019	20.376
2020	17.316
2021	22.926
2022	28.898
2023	33.618
2024	25.098
2025	27.147
2026	27.895
2027	26.640
2028	25.511
2029	24.848