Year	Percent of GDP (Units)
1990	29.736
1991	27.184
1992	25.545
1993	26.542
1994	20.501
1995	21.417
1996	18.423
1997	16.640
1998	18.048
1999	17.452
2000	18.211
2001	16.681
2002	18.688
2003	21.730
2004	25.344
2005	22.587
2006	26.550
2007	36.455
2008	38.458
2009	32.843
2010	37.207
2011	38.696
2012	33.750
2013	32.870
2014	24.529
2015	15.609
2016	15.463
2017	19.087
2018	19.360
2019	22.376
2020	23.107
2021	25.130
2022	22.957
2023	21.125
2024	31.947
2025	31.089
2026	29.217
2027	27.151
2028	23.513
2029	22.915