Year	Percent of GDP (Units)
1980	22.018
1981	21.676
1982	18.775
1983	17.357
1984	16.495
1985	16.012
1986	17.772
1987	13.441
1988	20.601
1989	30.535
1990	30.622
1991	21.542
1992	18.862
1993	21.829
1994	22.370
1995	19.622
1996	21.422
1997	17.412
1998	21.537
1999	20.540
2000	14.549
2001	17.592
2002	26.713
2003	20.848
2004	19.966
2005	20.274
2006	23.195
2007	25.687
2008	22.652
2009	20.690
2010	22.752
2011	24.036
2012	19.599
2013	22.903
2014	21.908
2015	21.747
2016	24.411
2017	23.932
2018	22.565
2019	21.116
2020	21.930
2021	23.129
2022	20.552
2023	22.256
2024	23.166
2025	23.883
2026	24.188
2027	24.442
2028	24.461
2029	24.484