Year	Percent of GDP (Units)
1988	24.886
1989	25.676
1990	25.816
1991	27.272
1992	26.689
1993	26.194
1994	26.208
1995	24.980
1996	24.364
1997	25.231
1998	26.034
1999	25.850
2000	26.086
2001	28.276
2002	29.115
2003	29.942
2004	28.450
2005	26.876
2006	26.910
2007	26.945
2008	29.293
2009	28.543
2010	27.985
2011	27.641
2012	27.364
2013	26.600
2014	26.220
2015	27.059
2016	27.233
2017	26.232
2018	26.328
2019	26.846
2020	31.019
2021	28.998
2022	29.008
2023	28.779
2024	27.958
2025	27.833
2026	27.543
2027	27.338
2028	27.186
2029	26.998