Year	Percent of GDP (Units)
1985	70.873
1986	46.486
1987	33.727
1988	33.484
1989	31.519
1990	30.329
1991	29.587
1992	25.831
1993	25.188
1994	24.506
1995	24.175
1996	28.151
1997	27.185
1998	21.386
1999	25.889
2000	44.352
2001	38.061
2002	36.812
2003	38.948
2004	41.719
2005	45.062
2006	47.769
2007	32.445
2008	63.312
2009	38.445
2010	43.790
2011	55.341
2012	46.777
2013	46.608
2014	37.664
2015	24.154
2016	17.671
2017	26.182
2018	28.565
2019	28.746
2020	17.462
2021	21.120
2022	28.907
2023	15.715
2024	15.771
2025	15.585
2026	15.449
2027	15.192
2028	14.659
2029	14.097