Year	Percent of GDP (Units)
1980	34.313
1981	37.251
1982	36.702
1983	34.431
1984	34.560
1985	31.443
1986	35.490
1987	35.942
1988	32.053
1989	34.044
1990	38.921
1991	41.101
1992	42.313
1993	41.970
1994	37.602
1995	36.121
1996	36.066
1997	39.001
1998	41.772
1999	40.068
2000	38.819
2001	42.119
2002	45.082
2003	42.746
2004	39.847
2005	33.783
2006	33.121
2007	37.067
2008	48.122
2009	52.123
2010	42.581
2011	37.158
2012	37.147
2013	33.487
2014	36.532
2015	37.813
2016	34.111
2017	34.672
2018	35.591
2019	36.861
2020	36.536
2021	31.397
2022	28.686
2023	29.289
2024	32.349
2025	29.282
2026	27.426
2027	27.757
2028	27.731
2029	27.691