Year	Percent of GDP (Units)
1980	28.775
1981	27.697
1982	26.296
1983	26.118
1984	26.898
1985	26.113
1986	25.665
1987	25.192
1988	27.496
1989	27.338
1990	25.087
1991	18.737
1992	16.410
1993	17.123
1994	20.582
1995	24.115
1996	23.696
1997	26.452
1998	27.667
1999	27.200
2000	30.973
2001	30.807
2002	29.828
2003	26.498
2004	28.432
2005	27.435
2006	27.889
2007	29.544
2008	27.755
2009	23.431
2010	23.536
2011	22.568
2012	21.300
2013	20.504
2014	20.563
2015	20.748
2016	21.240
2017	23.174
2018	23.392
2019	23.763
2020	25.023
2021	24.485
2022	24.164
2023	21.364
2024	22.772
2025	23.236
2026	23.558
2027	23.992
2028	24.453
2029	24.825