Year	% of GDP
1960	6.9789097095194
1961	7.31172529047979
1962	7.65561865484037
1963	6.9866222390165
1964	7.79526982435419
1965	8.66076972776066
1966	9.42743008796578
1967	8.40576941338979
1968	7.35261354236052
1969	7.98820988769077
1970	7.06793949913216
1971	5.63420913856748
1972	4.55087876972239
1973	4.26702043173778
1974	2.7505954743946
1975	4.0854555400231
1976	4.37478976719483
1977	4.08460506039668
1978	5.27652260592001
1979	7.11117258696913
1980	6.80489457982648
1981	6.93819210834067
1982	9.54803991365493
1983	12.736730541713
1984	14.1461198696265
1985	15.8940311119851
1986	18.4038879572697
1987	18.3229416915162
1988	21.3369276804056
1989	20.5230700292664
1990	14.8221099824074
1991	14.8717021826583
1992	16.7585536644371
1993	20.4697181528822
1994	22.3597574225155
1995	22.5686263552029
1996	20.7924387949329
1997	21.5087348399283
1998	29.1883475530879
1999	26.7446189971291
2000	24.2356134468207
2001	27.090480162661
2002	28.9483976585816
2003	28.2333101439677
2004	32.3542594274042
2005	35.4189179790554
2006	33.7245867667594
2007	37.071588765142
2008	37.6843188466467
2009	45.6298013133911
2010	39.1642133869688
2011	33.8287930069599
2012	36.0513945139664
2013	39.8336865827707
2014	43.697727889377
2015	54.6460465886975
2016	56.2764309584284
2017	51.9798284673154