Year	% of GDP
1963	2.837738167510885
1964	2.905487812404482
1965	3.221682245033994
1967	3.0845244100313076
1968	3.2456955551642
1969	3.375142462467555
1970	3.491658633243462
1971	3.5189295909623537
1973	3.0574189595082664
1974	3.690996528820456
1975	4.457563171910394
1976	4.5224118397570265
1977	4.42620729287279
1978	4.209183598068829
1979	3.4678362652069668
1980	3.1640363139527543
1981	3.356204774993335
1982	3.474866984933415
1983	3.516452961575555
1984	3.333445606074898
1985	3.401256842419014
1986	3.5423864551835713
1987	3.3198232661532785
1988	3.1003426577282576
1989	2.7163664177470626
1990	2.5060443888511954
1991	2.327778952901123
1992	2.156479049068921
1993	2.070612678375364
1994	2.0288989036959832
1995	1.9849531064557813
1996	1.9031575637781162
1997	1.8464673274166978
1998	1.8344935234219364
1999	1.9615807199365562
2000	1.8593902419014006
2001	1.9109729649952207
2002	1.9450120419557024
2003	1.8888118724767562
2004	1.8457516738031343
2005	1.796167338819919
2006	1.743336748475542
2007	1.717485555536408
2008	1.7301985004696114
2009	1.9252873569741258
2010	1.7766115236750761
2011	1.6779155769014193
2012	1.706400467329209
2013	1.7275035996553443
2014	1.7528413614371552
2015	1.7615941742836583
2016	1.7538204429980921
2017	1.7242583552319095
2018	1.678327964172405
2019	1.682207675573486
2020	1.7753962257300842
2021	1.6224752222293197
2022	1.6805752499466826