Year	% of GDP
1989	9.876050749260688
1990	7.237838859625365
1991	7.109310022729959
1992	9.46780588081996
1993	13.233228544045495
1994	14.987633610828519
1995	13.618913118464809
1996	14.19311382719735
1997	18.444484826458297
1998	20.50781382411676
1999	14.95250068303127
2000	16.53864555247614
2001	16.335643047293942
2002	19.96043136022541
2003	19.91758394945558
2004	20.578842675220535
2005	19.076340125555138
2006	20.08524458671979
2007	24.101890050425276
2008	24.292576589694427
2009	30.824174725651122
2010	36.1878338307889