Year	Percent of GDP (Units)
1980	15.306
1981	18.875
1982	18.133
1983	16.962
1984	16.953
1985	18.999
1986	18.804
1987	16.751
1988	16.561
1989	15.376
1990	17.706
1991	19.016
1992	24.009
1993	22.292
1994	22.723
1995	19.296
1996	21.844
1997	20.055
1998	21.396
1999	25.034
2000	24.005
2001	24.826
2002	25.716
2003	25.116
2004	30.066
2005	28.141
2006	26.764
2007	29.505
2008	32.450
2009	32.880
2010	30.153
2011	24.405
2012	26.273
2013	27.947
2014	31.471
2015	33.641
2016	34.246
2017	35.075
2018	34.598
2019	34.010
2020	33.253
2021	28.998
2022	27.574
2023	28.780
2024	28.337
2025	28.304
2026	28.413
2027	28.463
2028	28.535
2029	28.818