Year	% of GDP
1960	20.509524366016127
1961	19.71210775606868
1962	18.323454699407282
1963	19.539240663642577
1964	20.512388809383506
1965	20.84588002636783
1966	20
1967	21.558678678678678
1968	21.767467611560182
1969	23.54493010392585
1970	22.569533877943297
1971	23.986279554085506
1972	26.673929303112093
1973	26.801769210817305
1974	23.724450701213538
1975	34.561211874883575
1976	37.25855637138797
1977	40.616097003326786
1978	43.145747072045424
1979	37.74431131671296
1980	36.18140762624852
1981	36.58487840453283
1982	38.88515044563769
1983	48.19069027718491
1984	39.409125102363404
1985	39.06199366959231
1986	41.90767255689206
1987	34.90562461499581
1988	33.509400732637644
1989	27.49905486171849
1990	30.045089175833745
1991	33.26612876675889
1992	28.79677829970497
1993	27.387395778766145
1994	29.079481075418446
1995	25.172505053820466
1996	19.755180739797716
1997	21.566992143699316
1998	19.421365953542807
1999	19.914866071502715
2000	19.841929205796998
2001	19.677080506884906
2002	18.60544504746469
2003	24.276027745204974
2004	22.974075108632242
2005	23.691266387693364
2006	31.590332944922377
2007	33.68853234348138
2008	31.672209763655733
2009	37.42322848218703
2010	32.158874871510584
2011	35.94162096328077
2012	45.730805144717685
2013	52.897493607922364