Year	Percent of GDP
1997-01-01	10.0454900986131
1998-01-01	10.3356044138654
1999-01-01	10.5306466482201
2000-01-01	11.0822468627268
2001-01-01	10.5374560788297
2002-01-01	11.2697589342516
2003-01-01	12.4742632855820
2004-01-01	14.6327661126317
2005-01-01	17.9828087886359
2006-01-01	19.8595510174670
2007-01-01	19.9168661582634
2008-01-01	25.3662431125015
2009-01-01	20.4928381429043
2010-01-01	21.8190538578158
2011-01-01	25.5271741654948
2012-01-01	27.1793318066718
2013-01-01	24.9202561760460
2014-01-01	23.1608748598077
2015-01-01	18.8465799348711
2016-01-01	16.3203884647186
2017-01-01	17.9007320826770