Year	% of GDP
1980	52.65809782735723
1981	51.66304412462613
1982	49.751999708674134
1983	52.3676295542962
1984	51.10188148349671
1985	49.32673261671713
1986	48.474312167844595
1987	47.558971428702264
1988	49.68985301256475
1989	50.54350577139722
1990	51.22120277184106
1991	50.633126102758254
1992	50.24298240070605
1993	49.71856252011324
1994	50.89636210665226
1995	48.84797687647568
1996	49.000894116041
1997	49.85280689576375
1998	50.050726513030476
1999	50.3059204333259
2000	50.560190570833456
2001	49.24047190482445
2002	50.46377114311312
2003	50.789375336091766
2004	50.66900121942785
2005	49.68621235362315
2006	51.91525172868974
2007	53.22096441202594
2008	53.55247253307815
2009	52.37095269495882
2010	52.427062117161526
2011	53.763694468419544
2012	53.73597731679723
2013	52.69324780386483
2014	53.608532917362275
2015	51.43687343283866
2016	51.96810428349763
2017	52.170828645754895
2018	52.17278850849176
2019	50.954792939866735
2020	50.52479492783698
2021	50.52390326030483
2022	49.74105983090934
2023	50.794816285180865