Year	% of GDP
1970	78.2174278838315
1971	78.02695626046273
1972	77.68299833477965
1973	76.37984644051815
1974	77.35780068248165
1975	78.77433966564267
1976	78.04866201348129
1977	77.58304488463493
1978	76.24692815399224
1979	75.74696469766108
1980	77.14666292421501
1981	76.11352645631908
1982	78.52726353247768
1983	79.1680769436093
1984	77.44843302218415
1985	78.43942088680309
1986	79.13884328235179
1987	79.36151128219862
1988	79.26126500495184
1989	79.02371321509223
1990	79.77637300055139
1991	80.35404909510665
1992	80.4551980291786
1993	80.5566300442994
1994	79.99008128733584
1995	79.90227165840135
1996	79.49197348931429
1997	78.77909687985569
1998	78.83703267979482
1999	79.275762077554
2000	80.03907344410548
2001	81.38357382666241
2002	82.30095264865166
2003	82.81036446717788
2004	82.53841552513359
2005	82.2987259108057
2006	82.15497673894761
2007	82.52686084535907
2008	83.9785977688891
2009	85.12633627127157
2010	84.86496518599179
2011	84.68201889622206
2012	83.44301730592588
2013	82.45506417009312
2014	81.98894738330651
2015	81.45072710774446
2016	81.78832308344101
2017	81.61460714409908
2018	81.30205984397368
2019	81.00092024703788
2020	81.52961480470573
2021	82.26332753398519
2022	81.88988719282875