Year	% of GDP
1960	10.427312775330396
1961	10.689847009735745
1962	11.207970112079702
1963	10.197424892703863
1964	8.481113320079524
1965	8.657381615598887
1966	8.574468085106384
1967	7.715198863636363
1968	7.199999999999999
1969	6.873287671232877
1970	8.598473282442749
1971	11.430927835051547
1972	11.854721549636803
1973	13.088461538461535
1974	14.99394917305365
1975	13.33540179956562
1976	13.778425655976676
1977	12.863959102527692
1978	10.44870092926228
1979	8.180447068140097
1980	34.828541343413214
1981	38.58970946621851
1982	44.879232208027794
1983	50.267189371973814
1984	56.06806675738178
1985	54.79677388351002
1986	49.9383192874591
1992	25.0465939677977
1993	25.80554447536932
1994	34.770944330399615
1995	40.30673431242517
1996	44.16843032754784
1997	44.98451533201906
1998	43.154647812837624
1999	45.74578667968347
2000	50.39290093887134
2001	51.409633821378655
2002	51.056515910121675
2003	53.400615350595515
2004	55.3575539859331
2005	54.02816956404825
2006	55.62392374795981
2007	54.89457667168702
2008	56.810640096684104
2009	49.28642464788477
2010	51.73171323178996
2011	54.173476168089095
2012	52.39044011401862
2013	50.83298660227217
2014	52.24986629282666
2015	51.927606485413506
2016	51.69558773760909
2017	54.64089843815084
2018	59.03333199984548
2019	57.391668788156124
2020	56.85442562658052
2021	62.79031302567619
2022	62.55952813199527
2023	57.82364041654657