Year	% of GDP
1974	56.001492068658685
1975	57.177954856746325
1976	58.79782341628639
1977	73.98857856232397
1978	78.54421964436551
1979	81.87779526941027
1980	81.82619411290972
1981	93.03503656768687
1982	90.79037871508395
1983	87.16189273609358
1984	86.657387886213
1985	87.06449851708008
1986	89.14664945027818
1987	89.27213338533542
1988	91.65728177331415
1989	96.05764921178299
1990	100.22487386790242
1991	106.4352718044154
1992	110.76073582058805
1993	112.05321824755667
1994	111.56934841130747
1995	110.6524486514891
1996	115.18769902097381
1997	117.0938201225059
1998	115.54636933361297
1999	113.95085111174829
2000	110.69179603693459
2001	197.19276763052244
2002	191.62675935986567
2003	185.65792146911477
2004	187.90802403790002
2005	195.8898239485415
2006	212.84373716234546