Year	% of GDP
1975	5.03323984146118
1976	4.85082006454468
1980	5.03884482383728
1981	4.83336019515991
1982	5.04606008529663
1987	4.62343978881836
1988	4.54472017288208
1991	5.1324350833892805
1993	5.2519998550415
1994	4.90888977050781
1995	4.843374967575075
1996	4.84522008895874
1998	4.46187019348145
1999	4.75953006744385
2000	4.86840009689331
2001	4.82218980789185
2002	5.085945129394535
2003	5.11418008804321
2004	5.09336519241333
2005	5.0970599651336705
2006	5.00697135925293
2007	4.88682985305786
2008	4.83990001678467
2009	5.0701699256896955
2010	5.384429931640625
2011	5.11343002319336
2012	4.954524993896485
2013	5.119255065917965
2014	5.144274950027465
2015	4.957932710647585
2016	4.92138719558716
2017	4.95996999740601
2018	4.93008995056152
2019	4.983384847640989
2020	5.29163980484009
2021	5.05000019073486