Year	% of GDP
1991	59.01786052576629
1992	59.79142927788931
1993	61.45492287500688
1994	61.471375856846066
1995	61.30290074137902
1996	61.78709767594044
1997	61.95986104355442
1998	62.06146484156323
1999	62.32433930500072
2000	62.51567216129946
2001	63.01907265797604
2002	63.57182014818312
2003	63.97717483160154
2004	64.02943100836833
2005	64.24077397113291
2006	63.92547398083146
2007	63.96956123414558
2008	64.81258036347755
2009	66.70456532012663
2010	66.06749246140629
2011	65.91759797166942
2012	66.08230528630872
2013	66.32624661099506
2014	66.3868018545859
2015	65.99943310483779
2016	65.90014528412517
2017	65.76838765424414
2018	65.8285504470246
2019	65.93701516538016
2020	66.37938265699675
2021	65.65696007554934
2022	65.48630876604268
2023	65.61309916049845