Year	% of GDP
1960	32.9210589640385
1961	32.7390469163712
1962	32.0323187909756
1963	35.5466744011706
1964	28.4883989548465
1965	28.2436702957765
1966	26.6904159946907
1967	31.9999310365027
1974	15.4170598549358
1975	16.2924725971285
1976	18.8974900393002
1977	22.9510734164601
1978	23.2837982917324
1979	21.2025619037742
1981	17.1481333943038
1982	21.0484722468381
1983	23.8643467095986
1984	20.9667339705076
1985	23.2735754281033
1986	27.5957073894479
1987	29.5163725816454
1988	25.3074157013297
1989	25.5015991997958
1990	20.687983514308
1991	24.4536713611479
1992	29.1294538095282
1993	33.2979926802711
1994	34.0461654027955
1995	34.1420092732768
1996	33.3231670240413
1997	32.548045985028
1998	37.4603394470648
1999	40.4714604998953
2000	35.6050185403555
2001	41.0027017731631
2002	44.9059585876469
2003	47.7498632611289
2004	49.7786412250357
2005	73.7226932688573
2006	74.9483609919897
2007	81.3509422121852
2008	78.1703124703337
2009	92.4458242639463
2010	85.4781114473803
2011	79.3799453950246
2012	80.8999619743739
2013	78.484626423595
2014	80.7523632759386
2015	103.407413490843
2016	113.427106850785
2017	111.011822441645
2018	100.894058335823