Year	% of GDP
1961	6.12346049864824
1962	5.69071146245059
1963	6.84714060484449
1964	6.02234564711961
1965	6.695620820768319
1966	6.1255794096121
1967	5.20179852264212
1968	5.02319717599597
1969	5.31042884990253
1970	5.60194500335345
1971	5.65122539918307
1972	5.45164039198977
1973	5.113945578231291
1974	4.02108745089932
1975	3.7749712484559397
1976	3.7937069311262603
1977	4.03977311094605
1978	3.92138364779874
1979	3.5575807318937
1980	3.42212955528504
1981	3.4568203549523098
1982	3.21826066522826
1983	3.0703691066375
1984	2.92367110099446
1985	2.9782635874904
1986	2.87914210205326
1987	1.9724009432589
1988	2.14085227496295
1989	2.95910673319109
1990	3.3958905101322197
1991	3.17100459309858
1992	3.35451793339882
1993	3.52310856153263
1994	3.5411211276423797
1995	3.68483237946254
1996	3.4934278643400103
1997	2.31372237705347
1998	2.00890121108614
1999	1.73138335784836
2000	2.00119922180272
2001	1.5625614912969599
2002	1.12750816122084
2003	1.67046227508033
2004	1.65722703145489
2005	1.35460116507252
2012	3.85435141027015
2013	3.99963655299475
2014	3.7895343792659104
2015	4.30136026437039
2016	4.08929708316631
2017	3.64194893785999
2018	2.35979043196518
2019	2.18974002099593
2020	2.99047588930389
2021	3.39115163606364
2022	3.04694924417989