Year	% of GDP
1975	12.145445838114192
1976	16.50695511255863
1977	15.253128811513688
1978	9.735146708461102
1979	7.108652866187451
1980	7.288824203533746
1981	6.944905552034508
1982	5.5595433399037
1983	4.767275248363596
1984	4.0284275798602724
1985	2.8053471200801905
1986	2.6749204062238072
1987	2.7640554800642083
1988	2.0679107353318544
1989	1.601339127426167
1990	2.2574038197258774
1991	2.117743310535143
1992	2.2668297726061803
1993	1.7856602790526401
1994	1.6406343408091746
1995	1.1697245615057954
1996	0.8923419594258957
1997	0.8152150632264272
1998	0.7568316538233552
1999	0.4806516730541263
2000	0.3203145332045609
2001	0.3262098438472685
2002	0.35068752494888505
2003	0.3635629422308125
2004	0.8781099584872057
2005	1.1870713628691072
2006	1.047054614783149
2007	0.8724250675162316
2008	0.4363427637050602
2009	0.1503097341378749
2010	0.1766304974653345
2011	0.1350695497336242
2012	0.13016854311640638
2013	0.2522771479480756
2014	0.2981438605331158
2015	0.22205437346801893
2016	0.16325063967962578
2017	0.24188875795235187
2018	0.2601576163000636
2019	0.35489913978709403
2020	0.2956018808372465
2021	0.32309627330262986
2022	0.3369782701433416
2023	0.3101452107706892