Year	% of GDP
1980	1.51271998882294
1982	1.82588005065918
1983	1.483029961586
1986	1.51701998710632
1995	2.66399002075195
1996	2.94356989860535
1997	3.07756996154785
1998	3.69745993614197
2000	3.16440010070801
2001	2.92463994026184
2002	2.89222002029419
2003	2.93517994880676
2004	2.46983003616333
2005	2.32806992530823
2006	2.42579007148743
2007	2.48517990112305
2008	2.58282995223999
2009	2.53777003288269
2014	2.93400001525879
2015	3.51900005340576
2016	3.03399991989136
2017	3.97099995613098
2018	3.86400008201599
2019	3.35599994659424
2020	3.87700009346008
2021	3.88100004196167
2022	3.57999992370605