Year	% of GDP
1967	3.4801880967195435
1968	4.032548068592532
1969	4.513194848035475
1970	4.023339230452479
1971	3.8464154805369755
1972	4.2716172791096705
1973	3.632529879095555
1974	3.545353022314586
1975	4.650374759106029
1976	4.530275312800983
1977	4.537628106711057
1978	4.671054695379075
1979	4.401714440453633
1980	3.909889758082159
1981	3.453099414032842
1982	3.5424316756461947
1983	3.894129917055314
1984	3.994793186186156
1985	3.7639188610000605
1986	3.6466436407953493
1987	3.1669780829352887
1988	3.115436706552169
1989	3.104600954348612
1990	3.273394945574087
1991	3.3785858815668695
1992	3.1278340371380606
1993	3.119816685210417
1994	2.9293905437191965
1995	2.277056231559242
1996	1.9785160679435596
1997	1.8626338992728346
1998	1.9834676202273018
1999	2.626875703680284
2000	2.434917562209454
2001	2.3258607111451073
2002	2.322256884138351
2003	2.1017072188499615
2004	2.1342468999298747
2005	1.8881116599572845
2006	1.7695687058624014
2007	1.8195210687746626
2008	1.836007235797932
2009	1.861753212403736
2010	1.6685867308366646
2011	1.562666709202127
2012	1.579174721429337
2013	1.537863231736145
2014	1.5157879207996257
2015	1.4919933667824006
2016	1.4725312837927906
2017	1.48935347385146
2018	1.4739908311593697
2019	1.3655158024750758
2020	1.408789057014188
2021	1.4583188404941465
2022	1.3198586741143894