Year	% of GDP
1977	4.44089984893799
1978	5.56596994400024
1981	5.05397987365723
1982	4.60377979278564
1983	4.45373010635376
1984	4.08681011199951
1985	3.96308994293213
1986	3.48357009887695
1987	3.05735993385315
1988	3.13144993782043
1989	3.51567006111145
1990	3.17034006118774
1991	3.50989007949829
1999	3.9397599697113
2000	3.76910996437073
2001	3.11486005783081
2002	3.06089997291565
2003	4.41583013534546
2004	4.31306982040405
2005	4.07819986343384
2006	3.69751000404358
2007	3.18540000915527
2008	3.06307005882263
2009	3.04731011390686
2010	3.55147004127502
2011	3.33207011222839
2012	3.41820001602173
2013	3.56775999069214
2014	4.81514978408813
2015	4.75847005844116
2016	4.88207006454468
2017	4.87887001037598
2018	4.67447996139526
2019	4.54195022583008
2020	4.35243988037109
2021	4.67440986633301
2022	4.84420013427734
2023	3.64299988746643