Year	Percent of GDP
2004-01-01	17.6462186454843
2005-01-01	18.1375013313045
2006-01-01	18.2468892906990
2007-01-01	19.0131774755389
2008-01-01	19.4628334150706
2009-01-01	17.8794825556218
2010-01-01	21.6859065051277
2011-01-01	19.8135025114997
2012-01-01	19.7531161715480
2013-01-01	19.8768757871661
2014-01-01	21.0383008183489
2015-01-01	20.8961116162966
2016-01-01	21.9187854454453
2017-01-01	22.1100043606473
2018-01-01	22.6395563234450
2019-01-01	23.2177600894185