Year	Percent of GDP (Units)
1980	30.068
1981	27.302
1982	25.456
1983	26.484
1984	26.224
1985	25.143
1986	25.171
1987	24.704
1988	25.552
1989	26.509
1990	27.406
1991	25.772
1992	25.260
1993	23.939
1994	24.330
1995	24.327
1996	23.262
1997	23.376
1998	24.020
1999	24.003
2000	24.487
2001	22.960
2002	20.776
2003	20.437
2004	19.839
2005	19.485
2006	20.571
2007	21.380
2008	21.446
2009	18.556
2010	20.066
2011	21.635
2012	19.716
2013	20.054
2014	20.370
2015	19.743
2016	19.967
2017	20.962
2018	21.920
2019	21.870
2020	21.969
2021	23.217
2022	25.029
2023	23.571
2024	22.583
2025	22.714
2026	23.092
2027	23.196
2028	23.140
2029	23.088