Year	% of GDP
1977	-0.13987090857971624
1978	1.5851021000535486
1979	0
1980	0
1981	0
1982	1.5147216192788666
1983	1.8967622327697005
1984	1.9239581548364828
1985	2.451051675502601
1986	2.3889828277959713
1987	6.847240449614568
1988	6.338483009435397
1989	3.9208371399050943
1990	4.629317274521162
1991	5.078528157815641
1992	7.2805807078104925
1993	6.535620326245431
1994	5.939836767270608
1995	5.838510311779055
1996	4.623176305837861
1997	8.541765313274555
1998	10.91832090926149
1999	8.620548563179167
2000	11.054709723554575
2001	17.210960555530303
2002	14.408374820788424
2003	16.765635588706235
2004	21.09239902792351
2005	11.733185754231258
2006	14.701818555141594
2007	21.77771690940363
2008	17.485756489828145
2009	14.093530330459862
2010	7.218296425729721
2011	11.034799923242486
2012	6.227641217357245
2013	15.472926960808737
2014	9.18674323761499
2015	15.473188468193708
2016	10.306330527072447
2017	13.616450833270259
2018	15.944134958632752
2019	17.191457981398344
2020	13.539965545729427
2021	13.557496187789456
2022	12.758238958155882