Year	Percent of GDP (Units)
1980	18.305
1981	16.825
1982	17.097
1983	16.785
1984	16.318
1985	16.327
1986	16.840
1987	17.262
1988	16.248
1989	17.099
1990	17.221
1991	17.314
1992	18.428
1993	18.962
1994	17.790
1995	16.877
1996	17.279
1997	16.294
1998	15.973
1999	14.122
2000	16.311
2001	15.997
2002	14.962
2003	15.315
2004	15.651
2005	16.266
2006	18.282
2007	17.536
2008	17.996
2009	17.578
2010	15.962
2011	14.632
2012	15.169
2013	14.982
2014	14.908
2015	15.811
2016	15.936
2017	16.333
2018	17.068
2019	15.500
2020	14.816
2021	14.535
2022	15.386
2023	13.710
2024	12.912
2025	13.010
2026	13.818
2027	14.114
2028	14.110
2029	13.925