Year	% of GDP
1960	14.1417541998742
1961	17.5053419471225
1962	18.4796191176715
1963	18.5188270126904
1964	19.0546827879788
1965	20.3956998258783
1966	20.7356587247725
1967	21.7340637708365
1968	22.9219444544479
1969	29.0791435299596
1970	29.6627616570651
1971	29.8975640862582
1972	30.8545003389514
1973	33.2797330604244
1974	23.5406695728534
1975	22.8072469201328
1976	25.3157983767907
1977	25.3938179377246
1978	24.4944322803049
1979	23.8982462866465
1980	20.1500047133918
1981	21.3389599574102
1982	28.7827850783291
1983	36.4784476210072
1984	33.4112207251669
1985	35.3185108224034
1986	40.8296455889381
1987	40.5127639063126
1988	39.1769663609445
1989	37.3976100216378
1990	31.0758958168568
1991	33.197379915856
1992	36.0738690236439
1993	38.2367918700044
1994	37.2013175281575
1995	37.5938297320748
1996	37.6556668995986
1997	37.6723573756526
1998	41.6947708304287
1999	43.0230383078076
2000	39.351114030964
2001	45.5828535803641
2002	48.5971459876127
2003	49.8215109048656
2004	50.2956241403544
2005	68.781714092616
2006	69.6146974339167
2007	74.8882649635258
2008	72.152447210939
2009	86.3180844856232
2010	80.0356996637396
2011	74.6031563441889
2012	76.8362720246248
2013	74.9402350846854
2014	76.9000007841679
2015	95.391975413734
2016	103.918350546613
2017	104.070775305997
2018	95.6947408079803