Year	% of GDP
1970	0.5148432490234677
1971	0.3791941097261858
1972	0.37299256237903655
1973	0.5919854659184643
1974	0.9145100755240767
1975	0.5003906661282395
1976	0.48555325587822445
1977	0.5766522121621191
1978	0.3585780222212513
1979	0.6459243187204018
1980	1.0935578653504765
1981	0.6565670019861887
1982	0.5354803692022865
1983	0.5897192804686133
1984	0.32373877123658934
1985	0.40254143727446934
1986	0.34081856787888754
1987	0.4321758383009917
1988	0.9177968692574767
1989	0.774217881647849
1990	0.5016987297984096
1991	0.45613619520311494
1992	0.45586087631078165
1993	0.30852364432854884
1994	0.3173921812705305
1995	0.2745339586709852
1996	0.24288616744364683
1997	0.20123221899471155
1998	0.25021853488979867
1999	0.22410865555664775
2000	0.1995214077959839
2001	0.18299341959068519
2002	0.20486410607116992
2003	0.18887921936779642
2004	0.30363192610706535
2005	0.6173099636084316
2006	0.9597113323087741
2007	1.499743006887842
2008	1.5725507294535475
2009	0.8297513655606594
2010	1.514626482390999
2011	1.7409259208665078
2012	0.9272761460836276
2013	0.801146076639199
2014	0.5169031775386642
2015	0.3056499937416152
2016	0.36258609791174506
2017	0.4483753478532613
2018	0.4039031824172227
2019	0.3972855749787643
2020	0.4082822918667481
2021	1.214908465968468