Year	Percent of GDP (Units)
1990	23.275
1991	27.588
1992	28.210
1993	32.581
1994	30.946
1995	28.911
1996	26.886
1997	28.520
1998	28.733
1999	29.426
2000	26.352
2001	29.089
2002	32.494
2003	27.026
2004	27.082
2005	27.843
2006	27.838
2007	33.108
2008	37.306
2009	40.114
2010	35.090
2011	37.721
2012	40.031
2013	33.466
2014	36.947
2015	40.918
2016	37.179
2017	36.249
2018	36.250
2019	37.099
2020	37.506
2021	32.540
2022	32.030
2023	34.054
2024	36.299
2025	34.666
2026	33.162
2027	32.429
2028	32.132
2029	31.899