Year	% of GDP
1960	8.717540827718
1961	8.397678432978859
1962	10.02392537292274
1963	8.68307855303758
1964	8.104463752933412
1965	7.798348597102899
1966	9.247479957837031
1967	10.170147611711771
1968	12.559750447801443
1969	11.785902130923706
1970	11.342992913464984
1971	13.68411493353155
1972	14.694359483455752
1973	15.913971860626214
1974	13.938517571821771
1975	12.938842550191504
1976	15.188379374863853
1977	15.15993786828827
1978	14.818826584933506
1979	15.685134162829165
1980	16.18136419978109
1981	14.808173387860322
1982	15.207452603806368
1983	14.322882435845441
1984	17.403285935901096
1985	14.788065693568486
1986	13.26010370825593
1987	13.802629545813192
1988	11.706547928211975
1989	10.159426039562394
1990	13.920982233011966
1991	13.23601202087286
1992	12.97917255583975
1993	18.199342326731944
1994	21.112828572942206
1995	20.951804235740155
1996	22.81495247577567
1997	22.292573650920783
1998	18.763094224631192
1999	13.145662564392463
2000	21.6446761777991
2001	21.617713651824673
2002	25.154997802821132
2003	25.910062545034414
2004	28.351475119425523
2005	29.618620110023503
2006	29.497177002650993
2007	31.3915215103295
2008	31.712020671501755
2009	34.550278758734216
2010	35.4739834890087
2011	35.694337698695605
2012	37.58496135546652
2013	38.911990511496
2014	42.04895281629588
2015	42.287057361170184
2016	49.59267389268262
2017	37.0884180365937
2018	37.73507854495283
2019	41.03189302905041
2020	50.63875087372438
2021	50.880964889677905
2022	51.63244800071713
2023	53.292884229987436