Year	% of GDP
1977	7.4260045926353655
1978	7.78692897257372
1979	8.319952185714879
1980	8.155221346444954
1981	8.148308691423221
1982	7.911335378659565
1983	7.605784758582936
1984	7.210212660141354
1985	9.069075192948867
1986	7.852285098337912
1987	9.071308438170783
1988	8.856147821230497
1989	8.734136113251681
1990	7.020421735044868
1991	6.18775059987493
1996	13.386693536881769
1997	12.08939986187175
2005	12.182623013914817
2006	12.275043678737108
2007	12.297826073299033
2008	12.692243346790166
2009	11.844606514783376
2010	12.935223094755592
2011	13.625343780194832
2012	13.987666856963939
2013	13.177095577044854
2014	12.698373622566931
2015	10.978905904447705
2016	11.344414940541592
2017	11.495024598264827
2018	13.381415543159708
2019	12.204429115334992
2020	10.735830299741664
2021	11.432477426812069
2022	12.137160727323296