Year	Percent of GDP
1990-01-01	19.0183455860407
1991-01-01	16.9812097718686
1992-01-01	18.7421114029741
1993-01-01	20.1881172153578
1994-01-01	22.3294936584563
1995-01-01	22.8865148803136
1996-01-01	24.1942698702010
1997-01-01	25.1534197777562
1998-01-01	24.4355191919295
1999-01-01	23.6106515420556
2000-01-01	27.3438358198298
2001-01-01	25.2352987933978
2002-01-01	24.4234823306990
2003-01-01	24.8170860098614
2004-01-01	25.9240673560404
2005-01-01	28.6116769109343
2006-01-01	31.9765869323547
2007-01-01	31.9736157078989
2008-01-01	32.0502842028553
2009-01-01	24.0617379864463
2010-01-01	27.5885331679285
2011-01-01	30.6233542466121
2012-01-01	29.8254922112907
2013-01-01	28.7412891819538
2014-01-01	28.1543553289571
2015-01-01	25.9565722339696
2016-01-01	25.3637358905191
2017-01-01	27.9089321019300