Year	% of GDP
1979	4.79690980911255
1980	5.0694198608398455
1981	4.91429996490479
1982	5.117380142211915
1986	4.70795011520386
1987	4.62343978881836
1988	4.5687451362609846
1989	4.45639991760254
1991	4.78467988967896
1993	4.892770051956175
1994	4.761065006256105
1995	4.76711988449097
1996	4.883914947509766
1998	4.46187019348145
1999	4.57943487167358
2000	4.66695022583008
2001	4.9310097694397
2002	5.16462516784668
2003	5.11418008804321
2004	4.89062976837158
2005	5.00039982795715
2006	4.87443995475769
2007	4.702960014343265
2008	4.88697004318237
2009	5.2828950881958
2010	5.384429931640625
2011	5.10953998565674
2012	4.94940996170044
2013	5.125165224075316
2014	5.045284986495975
2015	4.971185207366945
2016	4.87302494049072
2017	4.960644960403445
2018	4.9294900894165
2019	4.98727989196777
2020	5.33907985687256
2021	5.05000019073486