Year	Percent of GDP (Units)
1980	40.915
1981	28.854
1982	24.427
1983	24.979
1984	20.413
1985	19.770
1986	21.058
1987	23.525
1988	21.124
1989	21.050
1990	19.928
1991	19.134
1992	20.279
1993	21.569
1994	23.039
1995	24.588
1996	24.570
1997	23.955
1998	24.008
1999	22.471
2000	21.296
2001	19.990
2002	23.701
2003	25.202
2004	27.079
2005	31.217
2006	31.160
2007	31.127
2008	27.959
2009	29.144
2010	27.011
2011	31.867
2012	31.503
2013	39.564
2014	36.484
2015	34.711
2016	29.808
2017	27.177
2018	35.554
2019	36.564
2020	33.474
2021	46.620
2022	45.619
2023	42.533
2024	39.450
2025	37.690
2026	35.930
2027	34.170
2028	32.411
2029	32.411