Year	Percent of GDP (Units)
1980	20.622
1981	20.622
1982	20.622
1983	20.622
1984	20.622
1985	20.622
1986	20.622
1987	16.338
1988	16.138
1989	25.411
1990	25.582
1991	25.862
1992	24.499
1993	20.266
1994	22.749
1995	24.069
1996	26.561
1997	36.584
1998	38.353
1999	35.593
2000	37.005
2001	34.168
2002	31.646
2003	31.814
2004	31.064
2005	34.697
2006	39.161
2007	37.315
2008	36.002
2009	34.876
2010	34.569
2011	36.735
2012	31.342
2013	29.589
2014	32.674
2015	24.639
2016	28.287
2017	28.513
2018	26.161
2019	27.652
2020	27.825
2021	26.391
2022	23.099
2023	21.982
2024	23.148
2025	24.502
2026	24.798
2027	24.265
2028	24.050
2029	24.002