Year	Percent of GDP (Units)
1980	31.678
1981	34.050
1982	37.781
1983	42.826
1984	44.869
1985	41.209
1986	38.350
1987	36.043
1988	40.741
1989	43.535
1990	43.733
1991	44.700
1992	46.744
1993	43.979
1994	48.198
1995	50.378
1996	49.667
1997	53.740
1998	53.282
1999	49.895
2000	46.246
2001	42.042
2002	39.951
2003	41.527
2004	42.204
2005	44.767
2006	49.273
2007	50.209
2008	45.243
2009	43.763
2010	50.592
2011	48.910
2012	46.906
2013	45.687
2014	47.380
2015	44.046
2016	44.237
2017	45.439
2018	40.724
2019	40.648
2020	39.450
2021	43.809
2022	40.314
2023	40.788
2024	39.710
2025	39.810
2026	39.549
2027	38.937
2028	39.725
2029	39.419