Year	% of GDP
1974	-3.1247688241276577
1975	-3.025113811637984
1976	-3.222173584396642
1977	-2.2798679699723543
1978	-7.171234744143011
1979	-6.45546302352957
1980	-8.560241523295034
1981	-11.267918005806123
1982	-6.617086322331418
1983	-8.527670771725257
1984	-7.816838720393602
1985	-9.415341296651455
1986	-6.839236152992383
1987	-6.624489600070794
1988	-6.303432008819286
1989	-5.465281663614772
1990	-4.915270689181848
1991	-5.123745268044633
1992	-5.164817395708491
1993	-5.876324957907968
1994	-3.7234900687609223
1995	-3.8641972113481318
1996	-3.0602836113974337
1997	-3.0591912447501777
1998	-3.8037517672734174
1999	-4.85800602014771
2000	-5.540798423553647
2001	-3.7751379479637324
2002	-4.543400894774429
2003	-4.9896938932859864
2004	-5.074475899041612
2005	-6.141503226963529
2006	-7.36865431598262
2007	-9.379070933013214
2008	-11.222076072763082
2009	-5.309157410994258
2010	-3.6565087622073644
2011	-6.445299367455407
2012	-8.651918546702854
2013	-8.192272457677847
2014	-6.802945238048859
2015	-5.316194754001917
2016	-4.178756111634004
2017	-7.2691408273976865
2018	-9.58292425612148
2019	-8.109496097720656
2020	-10.853230524356073
2021	-12.090063381917481