Year	Percent of GDP
1980	39.111
1981	41.511
1982	40.979
1983	40.218
1984	40.36
1985	39.459
1986	38.245
1987	36.411
1988	34.153
1989	33.546
1990	34.851
1991	35.655
1992	37.694
1993	37.678
1994	37.362
1995	37.476
1996	35.493
1997	34.589
1998	34.194
1999	33.821
2000	33.798
2001	34.63
2002	35.555
2003	36.792
2004	37.699
2005	38.156
2006	37.943
2007	37.978
2008	40.483
2009	44.078
2010	44.468
2011	43.21
2012	43.266
2013	41.446
2014	40.54
2015	39.671
2016	38.856
2017	38.407
2018	38.273
2019	38.344
2020	38.153
2021	37.936
2022	37.776
2023	37.753
2024	37.756