Year	Percent of GDP (Units)
1980	17.114
1981	18.959
1982	16.842
1983	18.620
1984	15.527
1985	13.358
1986	16.786
1987	14.624
1988	15.560
1989	16.406
1990	17.996
1991	17.720
1992	19.093
1993	18.324
1994	19.279
1995	19.455
1996	19.106
1997	19.441
1998	22.064
1999	12.844
2000	13.021
2001	16.728
2002	20.125
2003	19.856
2004	22.441
2005	20.419
2006	21.470
2007	21.304
2008	19.047
2009	22.228
2010	23.887
2011	23.149
2012	22.214
2013	24.652
2014	24.540
2015	23.712
2016	24.242
2017	24.906
2018	24.591
2019	25.593
2020	20.634
2021	19.633
2022	20.181
2023	20.882
2024	21.204
2025	22.397
2026	25.178
2027	26.350
2028	27.483
2029	28.785