Year	Percent of GDP (Units)
1990	26.636
1991	24.743
1992	24.630
1993	25.763
1994	25.182
1995	24.127
1996	30.698
1997	34.224
1998	34.270
1999	28.248
2000	31.689
2001	30.489
2002	30.783
2003	35.317
2004	34.162
2005	36.769
2006	37.369
2007	40.349
2008	41.247
2009	35.215
2010	30.203
2011	29.840
2012	36.218
2013	30.797
2014	27.780
2015	19.430
2016	16.068
2017	8.392
2018	14.264
2019	13.207
2020	10.646
2021	8.221
2022	12.172
2023	11.439
2024	10.645
2025	10.916
2026	16.310
2027	19.265
2028	19.307
2029	19.582
