Year	% of GDP
1960	59.99914656358954
1961	63.23177711341085
1962	63.94964278139926
1970	78.24421818883322
1971	81.98620871446657
1972	87.62006322852267
1973	88.10187377723811
1981	86.90694321704898
1982	89.76619042686146
1983	93.95836953200937
1984	95.81516437606764
1985	101.39239199120281
1986	111.21305940978469
1987	117.7173154918318
1988	122.28324106611524
1989	126.72245410904276
1991	129.1128991138917
1993	134.85780157752222
1994	135.5925183464185
1995	139.0628796014039
1996	140.1954143309572
1997	147.20377816110204
1998	154.66586885452668
1999	163.97164159924452
2000	159.17257346036328
2001	141.86902059316333
2002	137.07419241433715
2003	140.94873717057834
2004	141.9415032355956
2005	145.40711632578805
2006	150.9540552784991
2007	153.47049714684198
2008	146.73314375936027
2009	151.69854433382443
2010	148.0361515951767
2011	143.31675857806792
2012	143.86423333686506
2013	145.8192136555512
2014	144.8589570620215
2015	146.6148577027331
2016	148.4604813447802
2017	151.4988955126328
2018	145.9589712917209
2019	153.264522960273
2020	170.79487422401965
2021	169.53313403385474
2022	155.28253052856138
2023	161.63731303081778