Year	Percent of GDP (Units)
1980	16.178
1981	16.743
1982	19.445
1983	20.459
1984	21.655
1985	32.688
1986	34.045
1987	31.507
1988	28.105
1989	26.506
1990	25.246
1991	23.338
1992	23.415
1993	23.985
1994	22.861
1995	18.820
1996	18.275
1997	14.363
1998	10.572
1999	11.814
2000	17.074
2001	19.574
2002	19.498
2003	18.518
2004	16.637
2005	14.180
2006	16.964
2007	17.777
2008	21.638
2009	22.552
2010	21.790
2011	22.842
2012	21.862
2013	24.326
2014	24.711
2015	24.718
2016	22.133
2017	20.813
2018	18.743
2019	19.425
2020	19.593
2021	19.083
2022	17.643
2023	16.880
2024	17.490
2025	17.148
2026	17.526
2027	17.648
2028	17.349
2029	17.134