Year	Percent of GDP (Units)
1983	28.426
1984	28.297
1985	28.107
1986	29.080
1987	28.914
1988	29.216
1989	28.487
1990	27.583
1991	27.619
1992	28.326
1993	29.310
1994	29.903
1995	30.589
1996	30.957
1997	30.602
1998	31.376
1999	31.675
2000	32.514
2001	31.805
2002	32.344
2003	31.870
2004	31.668
2005	31.748
2006	31.375
2007	31.030
2008	31.902
2009	32.257
2010	31.802
2011	32.131
2012	31.892
2013	32.114
2014	31.926
2015	33.019
2016	32.683
2017	33.574
2018	33.034
2019	33.309
2020	33.995
2021	34.229
2022	33.141
2023	32.536
2024	32.536
2025	32.373
2026	32.373
2027	32.373
2028	32.373
2029	32.373