Year	% of GDP
1991	79.90642031014457
1992	83.5554947064802
1993	87.58072460653864
1994	83.64579050846402
1995	76.86161340656693
1996	74.71759493590909
1997	72.75616442697769
1998	72.8541663753979
1999	75.57432640867758
2000	75.62592070340163
2001	75.05521245299927
2002	76.44274282589988
2003	79.32800979570791
2004	76.93682428836414
2005	76.8110649071125
2006	75.2191717132376
2007	75.03691841215438
2008	74.89863465407488
2009	75.49274199216494
2010	74.0659855144023
2011	73.48383755921274
2012	73.72912391098124
2013	71.9046150088184
2014	70.09215476303446
2015	68.75523395209976
2016	70.04588878744042
2017	70.28613824396163
2018	68.94068483182984
2019	69.2989248038986
2020	70.83328843657173
2021	69.16737597771302
2022	70.46604952657356
2023	69.54215610469083