Year	Percent of GDP (Units)
1990	33.738
1991	29.748
1992	30.648
1993	27.829
1994	27.247
1995	26.135
1996	23.642
1997	32.305
1998	26.789
1999	28.219
2000	23.095
2001	27.668
2002	31.880
2003	29.284
2004	26.055
2005	24.923
2006	24.115
2007	23.351
2008	23.647
2009	25.638
2010	32.394
2011	31.360
2012	32.342
2013	33.212
2014	28.416
2015	36.500
2016	34.980
2017	32.181
2018	33.568
2019	32.681
2020	35.803
2021	31.838
2022	28.817
2023	29.155
2024	27.679
2025	26.853
2026	26.217
2027	25.667
2028	25.625
2029	25.546