Year	Percent of GDP (Units)
1980	44.320
1981	41.804
1982	36.481
1983	35.443
1984	39.428
1985	35.582
1986	29.094
1987	28.125
1988	25.666
1989	26.738
1990	38.040
1991	25.190
1992	29.425
1993	27.535
1994	27.704
1995	27.999
1996	31.826
1997	36.379
1998	30.189
1999	31.286
2000	38.233
2001	31.575
2002	25.862
2003	27.913
2004	26.411
2005	33.332
2006	36.585
2007	32.834
2008	32.158
2009	34.729
2010	33.709
2011	37.387
2012	42.926
2013	39.931
2014	35.860
2015	27.067
2016	25.210
2017	28.323
2018	31.488
2019	32.998
2020	29.367
2021	37.377
2022	35.483
2023	35.364
2024	34.667
2025	34.381
2026	34.255
2027	34.321
2028	34.140
2029	33.916