Year	% of GDP
1989	0.335094877540951
1990	0.6815213973913687
1991	2.894430575755126
1992	4.52426945768355
1993	6.614195765121461
1994	8.306734324716544
1995	8.347262179384202
1996	8.216370525517537
1997	11.237143376340178
1998	10.912387318794408
1999	7.05453185956057
2000	7.881538393677584
2001	8.626335834108191
2002	7.517369686813287
2003	6.198912798253373
2004	6.100177609410698
2005	6.920720019796424
2006	5.6732010640439645
2007	6.543260116081316
2008	9.566283244538612
2009	17.241818646168127
2010	20.919261560749327