Year	% of GDP
1973	4.67168998718262
1974	4.27548980712891
1975	5.21270990371704
1976	6.0271201133728
1977	6.08424997329712
1978	6.20182991027832
1979	6.31548023223877
1980	5.10485982894897
1981	5.68926000595093
1982	6.12268018722534
1983	6.17467021942139
1984	5.19013023376465
1985	5.10216999053955
1986	5.25928020477295
1987	5.16213989257812
1988	4.57781982421875
1989	4.7573299407959
1990	4.51048994064331
1991	4.30316019058228
1993	4.82496976852417
1995	4.73480987548828
1998	4.59939002990723
1999	4.62526988983154
2008	4.85339021682739
2009	4.83119010925293
2012	5.55299997329712
2014	5.48299980163574
2015	5.13299989700317
2016	5.08500003814697
2017	4.73600006103516
2018	4.96000003814697
2019	5.00299978256226
2020	6.28499984741211
2021	5.60099983215332
2022	5.76800012588501