Year	% of GDP
1960	1.55
1961	2.1399999999999997
1962	2.6599999999999997
1963	1.68
1964	1.15
1965	1.0699999999999998
1966	1.168
1967	1.4000000000000001
1968	1.68571428571429
1969	1.9375
1970	1.87777777777778
1971	1.8076923076923102
1972	1.82380952380952
1973	1.84857142857143
1974	1.65918367346939
1975	2.0419580419580403
1976	3.7812911725955205
1977	4.00860009555662
1978	4.7191440580817705
1979	4.67335625570135
1980	3.09895833333333
1981	3.4653465346534698
1982	2.70455793520044
1983	2.73881278538813
1984	2.16203914428767
1985	2.29971724787936
1986	2.31367874921125
1987	2.2843868799904
1988	2.12493922313663
1989	1.8803655923922298
1990	1.45090921225786
1991	1.50692655529635
1992	1.42122223348777
1993	1.4228029005729301
1994	1.45703853325047
1995	1.47307310721151
1996	1.24122726437626
1997	1.14013911131295
1998	1.13631802186333
1999	1.22035954754993
2000	1.1488226766688698
2001	1.18423354187058
2002	1.09188047859748
2003	1.06089505704838
2004	0.8832953588335289
2005	0.847154783885961
2006	0.7882338774614689
2007	0.792548175031362
2008	0.762756475390461
2009	0.886508576686385
2010	0.814878105497939
2011	0.764287094036749
2012	0.784824721019786
2013	0.8377364301594361
2014	0.878100919364039
2015	0.850128583186764
2016	0.813140077928875
2017	0.8561379163735431
2018	0.732300347538541
2019	0.699696134379197
2020	0.734492612232545
2021	0.630928835372215
2022	0.411211298762518