Year	% of GDP
1990	80.08743777580307
1991	78.69885633419443
1992	76.13273045272058
1993	75.84937919731964
1994	75.09450112603841
1995	77.17752367586283
1996	72.00939532392468
1997	72.30348444860371
1998	75.5717210187242
1999	76.01890982477688
2000	76.78644853806514
2001	74.17350665321553
2002	74.18540512233655
2003	72.0687413359624
2004	70.14887928187545
2005	70.62987179454467
2006	70.39771833325183
2007	69.73769246347037
2008	70.25192917690833
2009	72.39769043772236
2010	70.21484331162158
2011	69.93728604483984
2012	72.18003479180003
2013	71.77634977262908
2014	70.83772088984968
2015	72.51737070268611
2016	71.61276735892937
2017	70.54744258508086
2018	70.89064814205443
2019	71.06174329362133
2020	70.4778032976523
2021	70.29407765162851
2022	70.29658905740997
2023	71.59913568677918