Year	% of GDP
1976	9.695290858725762
1977	5.648743872549019
1978	5.133302913760511
1979	4.912950815134656
1991	9.699289478223793
1992	11.56709719134825
1993	14.245140096058398
1994	9.9670784134322
1995	4.9914741638060915
1996	11.510289734988376
1997	8.46933347479037
1998	9.536515239090905
1999	9.151551533566003
2000	15.999999873081444