Year	% of GDP
1960	42.0986449525112
1961	40.5655897339311
1962	42.945996328196
1963	42.8692683821079
1964	43.5944033317311
1965	43.7436853170337
1966	45.1313397235502
1967	44.9364191536563
1968	45.0736094888247
1969	45.288462912953
1970	41.7616115356083
1971	39.998037785031
1972	42.0913530096381
1973	45.2848230304873
1974	43.322166019963
1975	45.5781953542723
1976	45.7640651223648
1977	42.8880599508391
1978	43.4377158605073
1979	44.2483931411028
1980	43.4982913660459
1981	42.6466931123811
1982	38.5068112649844
1983	41.2587497833682
1984	42.1273333438658
1985	49.6297904337822
1986	53.1529403885242
1987	54.8099879343143
1988	57.12728679581
1989	70.5505506280916
1990	70.3941378858619
1991	70.7669002107266
1992	74.7468136137477
1993	75.2407898676485
1994	77.5642790763111
1995	80.489606128691
1996	83.5613216750045
1997	83.5640499167276
1998	88.0256346185869
1999	91.3330414426722
2000	93.3607239632011
2001	92.27182249605
2002	99.1782535072794
2003	103.777840747925
2004	108.113861059065
2005	113.319562138167
2006	118.268189429337
2007	146.407252027319
2008	159.417787201741
2009	150.791419123502
2010	153.790596961052
2011	151.161183425836
2012	149.891763054867
2013	155.287571385599
2014	164.427130151661
2015	175.653399753038
2016	182.471911332261
2017	176.157290062422
2018	176.785181805696