Year	Percent of GDP
1996-01-01	1.94
1997-01-01	1.86
1998-01-01	2.38
1999-01-01	2.82
2000-01-01	3.31
2001-01-01	3.22
2002-01-01	3.41
2003-01-01	3.40
2004-01-01	3.35
2005-01-01	3.71
2006-01-01	3.64
2007-01-01	3.95
2008-01-01	4.89
2009-01-01	4.43
2010-01-01	4.48
2011-01-01	4.42
2012-01-01	4.44
2013-01-01	4.78