Year	% of GDP
1977	6.668096241444643
1978	14.121916021568273
1979	15.834423660149852
1980	13.3116257085879
1981	-2.942407693463806
1982	-6.743497472442439
1983	-11.750674386989097
1984	3.970178791357229
1985	5.720452456140685
1992	12.936286643557162
1993	17.348475238481832
1994	10.358022736825031
1995	18.484881597063893
1996	24.18554314075857
1997	17.605665086244297
1998	15.246676786337204
1999	12.690771441436416
2000	9.592453448860143
2001	6.7154156418332915
2002	6.677187403054652
2003	11.178098543425143
2004	19.289801924412483
2005	17.475447313993193