Year	Percent of GDP
1971-01-01	0.58
1972-01-01	0.44
1973-01-01	1.41
1974-01-01	2.45
1975-01-01	1.09
1976-01-01	0.73
1977-01-01	0.63
1978-01-01	1.24
1979-01-01	-0.61
1980-01-01	-1.67
1981-01-01	-0.76
1982-01-01	0.67
1983-01-01	0.50
1984-01-01	1.30
1985-01-01	2.37
1986-01-01	3.73
1987-01-01	3.39
1988-01-01	3.85
1989-01-01	4.10
1990-01-01	2.72
1991-01-01	-1.28
1992-01-01	-1.04
1993-01-01	-0.94
1994-01-01	-1.37
1995-01-01	-1.14
1996-01-01	-0.55
1997-01-01	-0.44
1998-01-01	-0.76
1999-01-01	-1.31
2000-01-01	-1.77
2001-01-01	-0.01
2002-01-01	1.90
2003-01-01	1.84
2004-01-01	4.44
2005-01-01	4.82
2006-01-01	5.97
2007-01-01	7.23
2008-01-01	5.98
2009-01-01	5.71
2010-01-01	6.04
2011-01-01	6.60
2012-01-01	7.28
2013-01-01	7.33