Year	Percent of GDP (Units)
1980	14.481
1981	13.569
1982	19.244
1983	25.670
1984	29.601
1985	35.252
1986	39.646
1987	39.268
1988	38.344
1989	41.374
1990	43.927
1991	50.303
1992	56.718
1993	62.096
1994	66.156
1995	66.683
1996	65.878
1997	61.524
1998	57.464
1999	50.509
2000	42.011
2001	40.289
2002	38.944
2003	35.432
2004	34.619
2005	29.315
2006	24.979
2007	22.107
2008	22.733
2009	26.750
2010	28.225
2011	28.852
2012	28.536
2013	26.683
2014	21.691
2015	18.535
2016	18.010
2017	12.684
2018	11.733
2019	8.686
2020	16.095
2021	14.270
2022	15.582
2023	12.781
2024	13.278
2025	13.401
2026	13.338
2027	13.130
2028	13.058
2029	12.906