Year	% of GDP
1970	69.70219538840743
1971	68.85455482476007
1972	65.74953099247782
1973	65.12175911645981
1974	69.24487937725952
1975	64.89755324773233
1976	65.28448101384066
1977	64.90773256899675
1978	64.53217109490681
1979	66.08759194091849
1980	66.56625241851467
1981	66.72473477640773
1982	60.50127024106732
1983	60.34804894698136
1984	59.53004229452915
1985	60.28128848907187
1986	60.61453614993428
1987	59.96937514791666
1988	59.89349602996267
1989	59.462185405588876
1990	57.162984063112866
1991	57.58544871651251
1992	57.413095776251346
1993	55.88354242861633
1994	55.69153008164262
1995	52.4087095502928
1996	52.73188934255829
1997	50.19493094950055
1998	48.56981057036175
1999	47.45195703005329
2000	46.92342540329101
2001	45.57274750667082
2002	44.561269456128485
2003	44.464657822595896
2004	43.76506620048792
2005	43.634642464144044
2006	43.81941882736607
2007	45.190101460502774
2008	48.38157346094813
2009	47.275590892488125
2010	47.419007096625286
2011	46.00162139627097
2012	45.30111264519587
2013	44.987334093435166
2014	42.74142630550398
2015	32.902819384963806
2016	33.8473467997979
2017	31.832318790242436
2018	30.683651313621752
2019	29.408035617367563
2020	25.092600753085847
2021	24.446992550091146
2022	24.51853932537997
2023	27.048414875598397