Year	Percent of GDP (Units)
1980	40.946
1981	41.832
1982	46.399
1983	46.970
1984	46.759
1985	47.469
1986	46.807
1987	45.428
1988	44.762
1989	45.253
1990	48.090
1991	51.438
1992	52.507
1993	51.477
1994	49.012
1995	47.735
1996	45.864
1997	43.463
1998	43.406
1999	41.773
2000	40.558
2001	41.102
2002	40.394
2003	40.276
2004	39.135
2005	38.521
2006	38.661
2007	38.519
2008	38.775
2009	43.421
2010	43.064
2011	41.575
2012	40.926
2013	39.961
2014	38.370
2015	40.018
2016	40.753
2017	40.455
2018	40.662
2019	40.590
2020	52.362
2021	45.438
2022	41.034
2023	42.442
2024	42.202
2025	41.978
2026	41.851
2027	41.775
2028	41.662
2029	41.552