Year	Percent of GDP (Units)
1990	30.188
1991	27.682
1992	34.865
1993	35.309
1994	30.919
1995	26.997
1996	23.664
1997	24.993
1998	24.008
1999	23.522
2000	23.206
2001	20.958
2002	23.393
2003	25.845
2004	26.696
2005	26.212
2006	23.850
2007	26.571
2008	28.826
2009	31.004
2010	26.630
2011	25.278
2012	26.477
2013	26.814
2014	28.985
2015	41.963
2016	25.873
2017	23.865
2018	25.918
2019	24.911
2020	25.463
2021	23.172
2022	20.046
2023	20.154
2024	20.471
2025	20.110
2026	19.791
2027	19.452
2028	19.597
2029	19.373