Year	Percent of GDP (Units)
1980	19.045
1981	23.115
1982	23.111
1983	19.047
1984	12.864
1985	15.118
1986	13.287
1987	13.468
1988	13.680
1989	10.439
1990	8.131
1991	8.643
1992	7.390
1993	5.263
1994	8.762
1995	16.584
1996	14.497
1997	16.711
1998	17.401
1999	14.391
2000	12.154
2001	11.494
2002	8.979
2003	11.559
2004	10.984
2005	12.623
2006	10.219
2007	12.780
2008	14.015
2009	11.542
2010	15.670
2011	7.197
2012	17.825
2013	23.192
2014	23.399
2015	23.388
2016	23.195
2017	20.819
2018	22.253
2019	21.990
2020	21.743
2021	23.575
2022	25.884
2023	19.138
2024	20.496
2025	20.357
2026	20.252
2027	20.590
2028	20.702
2029	20.382