Year	Percent of GDP
1997-01-01	27.2299037735344
1998-01-01	29.3168043926064
1999-01-01	28.2319068209425
2000-01-01	28.8667588636093
2001-01-01	27.8868145999460
2002-01-01	24.4889784612271
2003-01-01	24.9790476720310
2004-01-01	26.9972709952367
2005-01-01	30.0167115178188
2006-01-01	35.3269900894086
2007-01-01	30.3564628806895
2008-01-01	32.2611601421344
2009-01-01	27.6461602835264
2010-01-01	28.5527104643644
2011-01-01	31.6946743158346
2012-01-01	31.7550173489549
2013-01-01	29.7379731829471
2014-01-01	30.2013692465949
2015-01-01	30.5567787386759
2016-01-01	27.4764826255041
2017-01-01	28.1049156364500