Year	Percent of GDP (Units)
1990	26.661
1991	26.133
1992	25.013
1993	24.946
1994	21.850
1995	21.977
1996	23.894
1997	25.647
1998	21.064
1999	23.164
2000	30.734
2001	28.393
2002	28.468
2003	27.509
2004	26.302
2005	27.837
2006	26.453
2007	24.937
2008	27.903
2009	20.052
2010	22.713
2011	26.265
2012	26.348
2013	24.330
2014	24.960
2015	18.210
2016	17.552
2017	18.151
2018	21.765
2019	23.717
2020	17.890
2021	20.851
2022	23.429
2023	20.827
2024	20.785
2025	19.240
2026	18.090
2027	17.160
2028	16.734
2029	16.302