Year	Percent of GDP
1980-01-01	45.072
1981-01-01	46.558
1982-01-01	52.260
1983-01-01	57.837
1984-01-01	60.866
1985-01-01	65.882
1986-01-01	70.101
1987-01-01	70.548
1988-01-01	70.516
1989-01-01	71.759
1990-01-01	74.531
1991-01-01	81.536
1992-01-01	89.183
1993-01-01	95.039
1994-01-01	97.785
1995-01-01	100.404
1996-01-01	100.573
1997-01-01	95.591
1998-01-01	93.614
1999-01-01	89.273
2000-01-01	80.706
2001-01-01	81.750
2002-01-01	79.888
2003-01-01	76.181
2004-01-01	72.135
2005-01-01	70.868
2006-01-01	70.126
2007-01-01	66.844
2008-01-01	67.834
2009-01-01	79.283
2010-01-01	81.097
2011-01-01	81.513
2012-01-01	84.840
2013-01-01	85.789
2014-01-01	84.960
2015-01-01	90.547
2016-01-01	91.147
2017-01-01	89.727