Year	Percent of GDP (Units)
1980	20.536
1981	21.157
1982	24.408
1983	24.274
1984	24.936
1985	25.151
1986	26.153
1987	15.675
1988	15.228
1989	14.122
1990	14.909
1991	16.126
1992	17.606
1993	19.527
1994	16.816
1995	16.103
1996	15.567
1997	19.075
1998	37.947
1999	27.644
2000	22.586
2001	23.577
2002	25.966
2003	29.389
2004	33.610
2005	28.418
2006	33.610
2007	39.771
2008	42.027
2009	34.062
2010	29.391
2011	27.812
2012	30.232
2013	32.367
2014	28.949
2015	36.376
2016	36.076
2017	33.843
2018	31.922
2019	26.906
2020	27.400
2021	22.936
2022	23.200
2023	24.400
2024	24.500
2025	25.300
2026	25.500
2027	26.300
2028	26.900
2029	26.900