Year	% of GDP
1980	14.269157045504558
1981	13.64486354120141
1982	10.913092018712362
1983	10.47039465519035
1984	10.94762316454708
1985	8.890064221061998
1986	12.191524969329096
1987	14.094434322408661
1988	15.966180763753618
1989	15.15161009228093
1990	14.707344032640798
1991	13.938199746188495
1992	12.247295912042668
1993	13.501041970083595
1994	14.147423529169087
1995	16.756143126080637
2006	13.246734954633583
2007	14.466959101546054
2008	15.096562638999513
2009	13.981706178831436
2010	14.482235040891833
2011	15.047597042513864
2012	14.85814418936942
2013	14.817275910432828
2014	14.928093371080264
2015	17.342942002782117
2016	18.09435059231984
2017	18.531618427108352
2018	17.619967532399006
2019	17.6216093198792
2020	18.294310520079673
2021	20.544751275000777
2022	21.441656699496413
2023	19.834128240673486