Year	Percent of GDP (Units)
1985	40.625
1986	40.006
1987	30.322
1988	36.552
1989	36.205
1990	31.955
1991	30.647
1992	34.113
1993	37.959
1994	47.056
1995	43.968
1996	36.855
1997	38.978
1998	45.383
1999	44.144
2000	37.492
2001	35.475
2002	41.425
2003	30.887
2004	33.154
2005	29.053
2006	27.989
2007	29.326
2008	27.171
2009	34.835
2010	36.177
2011	29.709
2012	30.991
2013	33.582
2014	34.088
2015	38.677
2016	39.352
2017	36.578
2018	32.152
2019	32.435
2020	33.235
2021	29.284
2022	26.376
2023	28.840
2024	29.141
2025	28.310
2026	27.572
2027	26.738
2028	25.725
2029	24.600