Year	Percent of GDP (Units)
1984	17.721
1985	19.855
1986	20.836
1987	19.379
1988	17.554
1989	18.379
1990	19.247
1991	17.695
1992	18.377
1993	17.559
1994	18.099
1995	14.264
1996	12.098
1997	13.246
1998	11.077
1999	11.009
2000	8.609
2001	10.865
2002	12.115
2003	10.714
2004	10.734
2005	11.763
2006	10.948
2007	11.884
2008	13.664
2009	14.022
2010	17.471
2011	14.078
2012	16.822
2013	25.315
2014	14.200
2015	21.657
2016	13.386
2017	18.752
2018	17.821
2019	15.844
2020	18.251
2021	17.138
2022	14.304
2023	17.340
2024	17.222
2025	15.771
2026	16.188
2027	16.904
2028	16.867
2029	17.921