Year	% of GDP
1970	4.86040268456376
1971	4.60024301336574
1972	3.52967032967033
1973	4.22027290448343
1974	4.24087591240876
1975	4.49749373433584
1976	4.7318339100346005
1977	4.95321959273528
1978	4.31971759959657
1979	4.39371316306483
1980	3.36598224195339
1981	3.1870961786967
1982	3.3450456781447597
1984	2.25310380803339
1985	2.5751957148743303
1987	4.3741673906747796
1992	3.8292886077865305
1993	3.6448691082442397
2001	1.79222454052521
2002	2.12335238350685
2003	2.43229339855318
2004	2.4401799027708297
2005	1.51813794092809
2006	1.56934291857187
2007	1.9162889436872
2008	1.79027941022784
2010	1.6625904477394
2013	2.04447551898046
2014	3.94035726748698
2016	4.942739818798239
2017	3.3842558856907496
2018	2.1433889563862203
2019	2.34540553524246
2020	2.89215384164222
2021	2.47848232699844
2022	1.8471891564902703