Year	Percent of GDP (Units)
1980	50.717
1981	52.371
1982	53.926
1983	54.597
1984	54.602
1985	53.011
1986	52.680
1987	53.703
1988	51.815
1989	49.990
1990	48.894
1991	49.656
1992	50.310
1993	50.937
1994	49.511
1995	53.116
1996	46.446
1997	44.984
1998	43.795
1999	43.601
2000	42.373
2001	43.089
2002	43.677
2003	44.696
2004	43.651
2005	42.585
2006	43.389
2007	42.698
2008	43.461
2009	47.894
2010	48.167
2011	47.148
2012	47.023
2013	46.841
2014	46.085
2015	44.849
2016	43.647
2017	42.459
2018	42.280
2019	42.124
2020	47.831
2021	46.072
2022	43.495
2023	44.064
2024	44.958
2025	45.314
2026	45.942
2027	46.195
2028	46.583
2029	46.697