Year % of GDP 1993 6.96235244967162 1994 5.290978038088577 1995 6.816832947660849 1996 6.076089883940385 1997 8.919613960898523 1998 7.08631286435856 1999 10.278928653474832 2000 11.910482558100023 2001 9.535520316640497 2002 11.53998057740404 2003 12.081059589461573 2004 12.366797430284993 2005 13.500026742358735 2006 13.645990189072958 2007 13.671222928890517 2008 10.967486565778987 2009 9.559665121324008 2010 9.716442084482132 2011 8.371773120668204