Year	% of GDP
1994	5.1258965866825035
1995	4.622521843101924
1996	7.04342165510527
1997	10.432325726132808
1998	12.700041554299537
1999	25.453517815193333
2001	13.156072286911918
2004	18.59985017211197
2006	27.74260981340369