Year	% of GDP
1977	0.5006062342184102
1978	0.4595197414963627
1979	0.5778488292417759
1980	0.6412868717761216
1981	0.7430018137157839
1982	0.9936479359703693
1983	1.0695747171150072
1984	1.0523438911754683
1985	1.0360038287547164
1986	0.810570121908125
1987	0.9503994949389104
1988	0.8939646722031492
1989	0.9895293890197311
1990	0.7705644515241485
1991	0.7115497043881989
1992	0.9137124873628766
1993	0.8209205603510477
1994	0.9099131409976093
1995	0.8524718324377709
1996	0.7232420917319959
1997	0.9679690521845251
1998	1.0958930267412568
1999	1.1496631977625007
2000	1.093284325846564
2001	0.8917467205574793
2002	1.0475923300143468
2003	0.9247695327992074
2004	0.9539549076531366
2005	0.6718604295689761
2006	0.6836887665355528
2007	0.711356263266181
2008	0.7901465923252116
2009	0.9125343501816742
2010	0.9247787724770796
2011	0.9981497027225934
2012	1.0042144436547065
2013	0.9864029390759418
2014	1.0870207705224153
2015	1.2242801013250804
2016	1.1047735818261721
2017	1.0752462913984568
2018	1.3598123970600817
2019	1.494275541385117
2020	1.4936169239907156
2021	1.5864188121890446
2022	1.5386188992748546
2023	1.462921517102815