Year	Percent of GDP (Units)
1980	13.155
1981	7.388
1982	14.133
1983	11.124
1984	15.333
1985	17.030
1986	21.078
1987	27.657
1988	22.180
1989	27.531
1990	22.892
1991	24.980
1992	24.860
1993	15.280
1994	16.749
1995	12.768
1996	14.610
1997	17.295
1998	14.959
1999	28.785
2000	30.411
2001	32.139
2002	31.115
2003	29.567
2004	26.850
2005	22.251
2006	21.987
2007	26.456
2008	20.380
2009	17.058
2010	15.914
2011	14.384
2012	19.224
2013	20.147
2014	18.760
2015	19.515
2016	20.015
2017	22.037
2018	22.381
2019	21.492
2020	19.708
2021	21.559
2022	25.932
2023	26.488
2024	26.188
2025	24.430
2026	23.921
2027	23.752
2028	23.620
2029	23.169