Year	Percent of GDP
1980	15.874
1981	15.898
1982	15.991
1983	15.461
1984	16.626
1985	18.569
1986	18.279
1987	20.164
1988	20.455
1989	21.731
1990	23.086
1991	21.375
1992	21.362
1993	21.781
1994	23.717
1995	23.666
1996	22.558
1997	24.272
1998	23.264
1999	25.628
2000	23.703
2001	24.932
2002	25.961
2003	29.109
2004	32.476
2005	33.463
2006	34.651
2007	36.843
2008	32.025
2009	33.665
2010	33.701
2011	35.402
2012	33.541
2013	32.286
2014	32.954
2015	31.067
2016	29.586
2017	29.106
2018	29.067
2019	29.269
2020	29.423
2021	29.558
2022	29.551
2023	29.645
2024	29.793