Year	% of GDP
1970	7.299411439543818
1971	5.324960998770632
1973	8.111087445027843
1974	8.172578811053958
1975	5.795790002232595
1976	5.41771835478454
1977	6.976546508742153
1978	5.634823240741557
1979	5.692324616395386
1980	7.956563496344246
1981	7.0012484117445775
1982	8.248679654850108
1983	6.8852550562795845
1984	6.42672336597899
1985	5.804628051069568
1986	5.8185592936859125
1987	5.7895194949496505
1988	6.216798975840667
1989	7.120867852308401
1990	7.4224530734721545
1991	5.786751856907151
1992	8.41022010463081
1993	7.281043751904731
1994	9.619214938484918
1995	11.445111662672431
1996	10.775963856028527
1997	9.709335226768891
1998	8.852304637262401
1999	6.619624428097882
2000	7.856847753422729
2001	7.297519667565248
2002	7.7958313349621475
2003	9.715832682102969
2004	9.288478991565619
2005	10.637357271936619
2006	11.350972418299506
2007	12.08210903854457
2008	12.931203424259515
2009	9.86497681112646
2010	10.73414236968482
2011	13.122354226050826
2012	11.748372649694534
2013	10.437205953199179
2014	9.605345956922541
2015	8.150744029986488
2016	8.384479657743087
2017	8.891329759636069
2018	7.818609470929442
2019	6.713713520883164
2020	6.587114472874372
2021	11.1213633996435