Year	% of GDP
1970	0.617871380910477
1971	0.472639590901172
1972	0.4180503057736983
1973	0.5913258505104698
1974	0.979090769674703
1975	0.5655945112316568
1976	0.5786279960722391
1977	0.6435795894453114
1978	0.43315677999569785
1979	0.7458224310083322
1980	1.2155778732378044
1981	0.7775073934750161
1982	0.6337195980767075
1983	0.6841210102072182
1984	0.38903744531040746
1985	0.4736629792811285
1986	0.37695879873882837
1987	0.48481711705675334
1988	0.8054332806574326
1989	0.7320301719870557
1990	0.5037094326463512
1991	0.41637904296007594
1992	0.5495555684794017
1993	0.34863678431361156
1994	0.3759246393047654
1995	0.37603886895337507
1996	0.31225458097637737
1997	0.26803895501282293
1998	0.29544257536576646
1999	0.2862867771811264
2000	0.2724230788482156
2001	0.22668456436477166
2002	0.24082283103874275
2003	0.23915955944793918
2004	0.40595293553678397
2005	0.7175457752107842
2006	1.1554361140685783
2007	1.6458531811105797
2008	1.6062288055793519
2009	0.8655116335159386
2010	1.6170473238593621
2011	1.8277693865585092
2012	0.9976356593192544
2013	0.8624053200486808
2014	0.5875129225826468
2015	0.3467964485129855
2016	0.4035457946215318
2017	0.5037173451569924
2018	0.462277413403952
2019	0.40708260778352706
2020	0.43769922634873515
2021	1.2932258063790958