Year	Percent of GDP (Units)
1980	43.883
1981	43.294
1982	43.872
1983	43.472
1984	41.506
1985	40.857
1986	44.287
1987	46.536
1988	48.400
1989	48.059
1990	48.937
1991	49.973
1992	51.312
1993	50.232
1994	49.353
1995	49.338
1996	47.037
1997	45.495
1998	47.804
1999	46.438
2000	41.326
2001	43.210
2002	46.149
2003	47.643
2004	44.749
2005	41.782
2006	40.480
2007	40.979
2008	39.759
2009	45.594
2010	44.474
2011	43.266
2012	42.400
2013	43.454
2014	45.225
2015	48.203
2016	50.405
2017	49.223
2018	47.694
2019	50.203
2020	56.710
2021	46.286
2022	37.645
2023	44.965
2024	43.377
2025	42.298
2026	42.643
2027	43.110
2028	43.665
2029	44.075