Year	% of GDP
1981	3.89024996757507
1982	4.14254999160767
1983	5.97797012329102
1984	6.10957002639771
1986	6.25535011291504
1991	5.77945995330811
1992	5.14462995529175
1993	5.99928998947144
1994	6.34382009506226
1995	5.69247007369995
1996	4.94374990463257
1997	4.37707996368408
1998	8.28131008148193
1999	7.07226991653442
2000	5.90983009338379
2001	7.71887016296387
2002	7.63688993453979
2003	7.10509014129639
2004	6.2774600982666
2005	5.43092012405396
2006	5.89117002487183
2008	5.13781023025513