Year	% of GDP
1965	0.701997780244173
1966	0.6457925636007831
1967	0.716937354988399
1968	0.6954303460514639
1969	0.667962356792144
1970	0.641145638337701
1971	0.581516870707674
1972	0.602199944305207
1973	1.06043956043956
1974	0.966955579631636
1975	1.52680762695866
1976	1.3733660130718999
1977	1.68990384615385
1978	2.69451729736481
1979	4.06593406593407
1980	4.29310516366531
1981	3.11118130132659
1982	2.28696490241748
1983	1.81641032778899
1984	1.55953496544454
1985	1.7511183094246499
1986	2.09546778303604
1987	1.8288064269319102
1988	1.5113081131689001
1989	1.49707087064203
1990	1.30860569241997
1991	1.0757301042543501
1992	1.40248604299682
1993	1.26297539274604
1994	1.42188006792208
1995	0.790559173717009
1996	0.8834681206900501
1997	0.9915560751504741
1998	0.8136398420299481
1999	0.811014470541655
2000	0.672638828685643
2001	0.738822048464015
2002	0.42382286451843904
2003	0.408792459950684
2004	0.631868059297767
2005	1.0452616055783
2006	0.777651497953322
2007	0.7579519678463961
2008	0.835636993913521
2009	0.9497045878389071
2010	0.718201023626047
2011	0.659728503647157
2012	0.765630689417871
2013	0.8097900171630781
2014	0.580771920223763
2015	0.45082567829521897
2016	0.452047299475691
2017	0.530100463619354
2018	0.589501502223623
2019	0.760781826918983
2020	0.834281207531417
2021	0.75913111163443
2022	0.636293160064403