Year	% of GDP
1990	68.53898173218576
1991	68.73161060919864
1992	69.67618251335227
1993	70.56525417741693
1994	70.56421733342637
1995	65.10691499040318
1996	65.29379896328874
1997	65.8371835683681
1998	66.20193670311797
1999	66.32018465408034
2000	66.26987732023198
2001	67.49030437077657
2002	67.8038069930563
2003	68.33972538292696
2004	68.95671299079036
2005	69.26210492375688
2006	69.37239391917872
2007	69.69883538980356
2008	69.82040662650603
2009	71.8187347382041
2010	70.90639848360607
2011	70.26975983255042
2012	70.44362685744129
2013	69.99294359762001
2014	70.19356633023966
2015	70.45147514859498
2016	70.93081347328464
2017	70.76195616576759
2018	70.74864888974791
2019	70.97301113154853
2020	72.14663582171261
2021	72.28243856714238
2022	72.17141710172584
2023	72.83570992108473