Year	% of GDP
1978	2.01904988288879
1979	2.01298999786377
1980	1.93636000156403
1994	2.51263999938965
1995	2.61744999885559
2012	6.30000019073486
2013	5.87492990493774
2014	7.0901198387146
2015	6.41297006607056
2016	6.30800008773804
2017	5.74399995803833
2018	6.05646991729736
2019	5.93200016021729
2020	5.97599983215332
2021	5.81099987030029
2022	4.44199991226196