Year	Percent of GDP (Units)
1990	53.202
1991	54.956
1992	51.458
1993	53.273
1994	47.970
1995	46.464
1996	46.427
1997	38.244
1998	48.111
1999	38.009
2000	34.407
2001	36.590
2002	39.472
2003	35.218
2004	47.610
2005	38.793
2006	37.940
2007	39.800
2008	33.036
2009	50.562
2010	36.597
2011	33.733
2012	39.537
2013	47.563
2014	45.668
2015	57.007
2016	30.935
2017	27.843
2018	31.156
2019	33.463
2020	32.566
2021	29.612
2022	34.624
2023	29.818
2024	29.063
2025	28.808
2026	28.502
2027	27.614
2028	27.363
2029	27.381