Year	Percent of GDP (Units)
1980	27.878
1981	31.364
1982	28.680
1983	24.815
1984	18.654
1985	19.344
1986	20.244
1987	24.335
1988	6.676
1989	3.934
1990	11.887
1991	17.758
1992	23.413
1993	29.131
1994	29.642
1995	31.401
1996	30.351
1997	29.442
1998	31.493
1999	30.198
2000	28.422
2001	20.612
2002	18.405
2003	22.428
2004	22.036
2005	21.806
2006	23.252
2007	35.216
2008	41.210
2009	31.233
2010	37.248
2011	37.707
2012	42.680
2013	43.351
2014	43.926
2015	42.493
2016	40.263
2017	41.558
2018	41.238
2019	38.128
2020	24.798
2021	32.374
2022	34.324
2023	34.726
2024	34.751
2025	34.823
2026	34.896
2027	34.968
2028	35.040
2029	35.113