Year	% of GDP
1980	0.902357645982379
1981	0.793828345445229
1982	0.639108637534101
1991	2.38055425991604
1992	1.69464061466168
1993	1.3407093629396
1994	1.35611690454208
1997	1.17281926203606
1998	1.2549918031235598
1999	1.5951311433112898
2000	1.53463751403247
2001	3.10021054615164
2002	3.3246802439882996
2003	2.44118141486197
2004	2.22856440980186
2012	2.28659822674558
2013	2.34960684351508
2014	2.24021951361906
2015	2.5177353446049597
2016	1.88205381003036
2017	1.7681225057443601
2018	1.63681420468527
2019	1.44513568163751
2020	1.4388993659692701
2021	1.4845411173646799
2022	2.0371576186367797