Year	% of GDP
1974	4.24204015731812
1976	4.360599994659426
1978	4.34511995315552
1979	4.79690980911255
1986	4.85229015350342
1987	4.62343978881836
1988	4.5687451362609846
1993	4.84095001220703
1994	4.6672749519348145
1995	4.69021487236023
1996	4.799570083618165
1998	4.54056978225708
1999	4.51084995269775
2000	4.58512020111084
2001	5.22845983505249
2002	5.032310009002685
2003	5.05714988708496
2004	4.87674999237061
2005	5.0916748046875
2006	4.957320690155029
2007	4.674350023269655
2008	5.0692849159240705
2009	5.559059858322145
2010	5.450789928436279
2011	5.118380069732665
2012	5.315917015075685
2013	5.3058149814605695
2014	5.15007567405701
2015	4.93930768966675
2016	4.8159499168396
2017	4.826184988021855
2018	4.80485987663269
2019	4.7632551193237305
2020	5.143194913864136
2021	5.005000114440914