Year % of GDP 1995 12.49398696297931 1996 22.40298961281469 1997 20.930283158367633 1998 26.569214179996642 1999 28.110394489411807 2000 22.241802659131853 2001 18.601190583734013 2002 19.295092868214976 2003 26.11178475557877 2004 24.89596711566128 2005 25.806769970889743 2006 29.26198084165285 2007 29.53686463811527