Year	Percent of GDP (Units)
1980	28.651
1981	29.564
1982	27.407
1983	23.935
1984	27.995
1985	26.724
1986	27.087
1987	24.642
1988	24.651
1989	25.439
1990	22.693
1991	17.543
1992	18.184
1993	23.993
1994	24.624
1995	25.978
1996	20.978
1997	20.716
1998	23.073
1999	19.316
2000	16.060
2001	16.235
2002	18.632
2003	18.356
2004	17.504
2005	17.171
2006	18.232
2007	13.648
2008	14.216
2009	16.186
2010	13.259
2011	16.566
2012	12.300
2013	11.422
2014	9.468
2015	13.185
2016	13.178
2017	15.600
2018	15.330
2019	14.239
2020	10.991
2021	13.367
2022	13.497
2023	13.733
2024	13.686
2025	13.625
2026	13.807
2027	14.181
2028	14.385
2029	14.741