Year	Percent of GDP (Units)
1980	24.112
1981	21.159
1982	19.727
1983	18.322
1984	15.444
1985	15.036
1986	16.812
1987	19.454
1988	19.757
1989	21.812
1990	20.833
1991	16.648
1992	18.791
1993	19.758
1994	21.004
1995	20.050
1996	20.054
1997	22.101
1998	28.069
1999	27.113
2000	27.893
2001	26.771
2002	26.957
2003	19.409
2004	20.627
2005	24.773
2006	26.927
2007	28.351
2008	30.024
2009	23.573
2010	26.380
2011	25.026
2012	24.296
2013	22.724
2014	23.113
2015	23.442
2016	22.972
2017	22.472
2018	25.796
2019	26.005
2020	25.383
2021	31.352
2022	33.276
2023	29.514
2024	29.577
2025	29.575
2026	29.122
2027	28.951
2028	28.890
2029	28.906