Year	Percent of GDP (Units)
1981	46.434
1982	35.024
1983	41.242
1984	41.406
1985	45.095
1986	45.283
1987	46.895
1988	46.675
1989	36.665
1990	28.631
1991	30.325
1992	30.985
1993	39.920
1994	37.746
1995	37.725
1996	40.439
1997	35.913
1998	32.382
1999	38.891
2000	39.639
2001	38.131
2002	34.973
2003	24.512
2004	32.798
2005	29.470
2006	33.354
2007	33.987
2008	33.535
2009	38.506
2010	43.969
2011	33.741
2012	33.635
2013	28.417
2014	31.826
2015	27.469
2016	28.567
2017	26.274
2018	30.173
2019	22.762
2020	29.141
2021	30.869
2022	25.136
2023	24.358
2024	23.756
2025	25.039
2026	27.217
2027	26.389
2028	25.624
2029	27.510