Year	% of GDP
1988	71.68257533221038
1989	65.27050610820244
1990	69.65429990686123
1991	63.45513049696103
1992	51.31877958968963
1993	65.2820826773949
1994	69.89950061399918
1995	71.16445730871087
1996	71.51519323072513
1997	75.82025123435761
1998	76.20103718289656
1999	68.12234987171988
2000	61.27863047517097
2001	65.82149900022166
2002	69.10207284982226
2003	68.58373459744924
2004	67.40924028145885
2005	66.8133118212202
2006	66.16475372711366
2007	66.07591926856648
2008	66.72868821749779
2009	75.42308125853619
2010	70.2129653935661
2011	68.01044681771302
2012	69.41415553408493
2013	71.84092226285424
2014	71.79033278501835
2015	70.4452179271466
2016	71.71373141266655
2017	71.08800651545243
2018	68.0762976150015
2019	69.70037852972814
2020	71.46670803218707
2021	67.06612083982033
2022	65.73641053820828
2023	68.27572033297574