Year	Percent of GDP (Units)
1980	21.417
1981	23.062
1982	22.894
1983	22.278
1984	21.361
1985	21.549
1986	20.616
1987	22.425
1988	24.731
1989	22.540
1990	20.898
1991	18.034
1992	19.403
1993	23.828
1994	28.856
1995	28.914
1996	25.320
1997	23.877
1998	22.489
1999	14.867
2000	15.821
2001	17.040
2002	18.345
2003	19.866
2004	20.672
2005	21.656
2006	22.939
2007	23.454
2008	23.721
2009	21.988
2010	21.889
2011	22.996
2012	22.105
2013	22.183
2014	24.003
2015	23.774
2016	23.167
2017	21.599
2018	21.195
2019	21.381
2020	19.128
2021	18.917
2022	19.744
2023	12.812
2024	12.904
2025	14.472
2026	14.742
2027	14.593
2028	14.639
2029	14.441