Year	% of GDP
1970	1.62960609911055
1973	1.86891025641026
1974	1.61082474226804
1975	1.72206572769953
1976	2.04608695652174
1977	2.0114747930775003
2004	2.4312537873911797
2005	1.99206569856085
2006	1.8962339963425199
2007	2.5662673519856902
2008	2.335545701939
2009	2.08741255278385
2010	1.94583569418812
2011	1.8213454535463198
2012	1.1754161200998698
2013	1.0769497676240298
2014	1.29801287790022
2015	0.9945758227236451
2016	0.956772140958855
2017	0.9452267999395161
2018	1.00674585570556
2019	1.17096838242129
2020	1.3588569273892899
2021	1.827933856217