Year	% of GDP
1960	20.047978067169296
1961	23.069679849340865
1962	28.39616995810892
1963	33.6873547958845
1964	19.64660077867625
1965	19.834482758620688
1966	18.698559670781894
1967	23.465788854925933
1968	25.35364526659412
1969	24.628961091054954
1970	22.218073188946974
1971	22.3541925190569
1972	18.53829467712331
1973	10.514888337468982
1974	28.333507908243426
1975	33.03578947368421
1976	12.525305870962065
1977	13.514715035120476
1978	20.493807683205805
1979	21.574541889751906
1980	20.40450928381963
1981	7.983713712192468
1982	7.662517289073306
1983	2.690735694822888
1984	20.22249427405326
1985	22.000005128205128
1986	33.23041166960422
1987	19.91366849169299
1988	16.843886342288215
1989	15.043562345221433
1990	13.980205450885622
1991	21.783118872863522
1992	28.275117045405924
1993	23.70388759217915
1994	14.244850628551099
1995	22.322653755349403
1996	25.763305395000007
1997	22.07140303041503
1998	16.943093505224123
1999	16.955582073577254
2000	9.16733116684416
2001	7.741910650221348
2002	8.741791512110877
2003	11.143014146490449
2004	13.945740337132232
2005	-0.32024649275502964