Year	Percent of GDP (Units)
1990	30.226
1991	33.012
1992	32.796
1993	32.447
1994	28.709
1995	29.628
1996	30.432
1997	30.921
1998	31.262
1999	31.828
2000	30.122
2001	30.726
2002	29.841
2003	31.090
2004	28.393
2005	27.698
2006	27.376
2007	26.080
2008	28.394
2009	31.962
2010	33.469
2011	38.472
2012	35.041
2013	38.308
2014	41.792
2015	43.674
2016	41.762
2017	38.093
2018	36.330
2019	37.415
2020	41.477
2021	39.193
2022	36.145
2023	37.254
2024	36.679
2025	35.363
2026	34.892
2027	34.811
2028	34.628
2029	34.580