Year	% of GDP
1976	45.853708343204566
1977	47.576984571041955
1978	48.57890924371165
1979	46.73979941393146
1980	51.76933882848629
1981	51.60221415256946
1982	50.728498973381775
1983	50.653882573857075
1984	48.96468870894317
1985	45.725660603296284
1986	43.806127874896355
1987	45.51059851162436
1988	46.764286485452324
1989	48.01019348445409
1990	45.44041576832509
1991	46.42262821597539
1992	46.90325979075302
1993	47.79586020818975
1994	49.72150301380908
1995	50.361865906381084
1996	50.872520905426924
1997	51.912451669644476
1998	51.863951239973126
1999	55.04481529583119
2000	55.242225204663185
2001	55.49006180917555
2002	56.3205984623161
2003	56.6063415748585
2004	56.740383284454246
2005	58.75671325918152
2006	61.847265221878224
2007	61.892708386394006
2008	61.611094302982536
2009	62.23385294561209
2010	62.86007462080745
2011	63.194585161819106
2012	63.61780039013929
2013	63.8794311771517
2014	64.94476097224685
2015	65.53110211528593
2016	66.19141235869711
2017	66.59398850825083
2018	66.90371105116118
2019	67.41781030563865
2020	68.04738077946149
2021	66.92633984047852
2022	65.94274449661586
2023	64.62979386789992