Year	% of GDP
1970	5.7322998046875
1971	5.550950050354
1973	5.238450050354
1975	7.74302005767822
1978	8.41331005096436
1979	7.03813982009888
1980	6.35924005508423
1994	6.37311983108521
1995	4.91033983230591
1998	4.06827020645142
2002	3.20831990242004
2003	2.8361599445343
2004	2.28813004493713
2005	1.6810200214386
2010	5.6867299079895
2011	2.6470000743866
2012	2.73900008201599
2013	5.01399993896484
2014	3.1837100982666
2015	3.28257989883423
2017	4.45052003860474
2018	2.99548006057739
2019	3.55900001525879
2020	4.61899995803833
2021	3.67499995231628
2022	2.95199990272522