Year	% of GDP
1986	11.971454327227669
1987	12.167579619454738
1988	11.679237273433756
1989	13.064537120555746
1990	14.19206571912413
1991	14.52844114577676
1992	17.562001209593564
1993	20.37739178159073
1994	18.97610045126848
1995	17.70680034664975
1996	18.83226287543617
1997	19.688854008681965
1998	19.676297283968534
1999	20.504120273273866
2000	20.553649005340556
2001	24.244916928985518
2002	28.784435459979385
2003	28.207637885898233
2004	27.211198724807172
2005	25.983153055823482
2006	23.938039252765563
2007	21.811043363786567