Year	% of GDP
1967	5.443981068029653
1968	9.951019168630538
1969	10.212511844728438
1970	10.37507191426529
1971	9.874107990519258
1972	7.900703538303875
1973	5.054243105202809
1974	-15.12743301576179
1975	-3.9687845220590425
1976	4.203464193417532
1977	9.598179476786733
1978	-2.120074512442301
1979	0.6354212339893142
1980	-14.416865851537716
1981	-15.503104347669282
1982	-15.37829774050621
1983	-16.156622295797924
1984	-17.814599588216534
1985	-12.858786379302941
1986	-3.830589676805243
1987	5.218567686107771
1988	0.8353110537751082
1989	8.143832164676077
1990	4.417150027252363
1991	0.31692354054094063
1992	0.9038106319048939
1993	-0.03914865589724606
1994	3.255287521124548
1995	4.1652474513174
1996	4.72254292666658
1997	11.550567698727043
1998	12.133871396824434
1999	8.368772996807676
2000	6.710263034682849
2001	12.913587578325183
2002	14.091381841744555
2003	13.722375056414238
2004	13.671771375962935
2005	12.734304679187202
2006	17.073664913353902
2007	15.528613118829822
2008	11.419334249267537
2009	15.004362488593268
2010	11.714788164507096
2011	11.262246835324184
2012	13.77514813392188
2013	4.386336949741307
2014	4.633224175582172
2015	5.208675101869073
2016	7.085178325331768
2017	7.948954322390037
2018	9.358268602690206
2019	10.283562135797409
2020	10.788453914728564
2021	10.31067997410119
2022	8.122593432811847
2023	8.606147139499729