Year	Percent of GDP
2008-01-01	10.8431
2009-01-01	17.9896
2010-01-01	21.6908
2011-01-01	28.8027
2012-01-01	31.3270
2013-01-01	37.7388
2014-01-01	37.7266
2015-01-01	41.1858
2016-01-01	46.2139
2017-01-01	51.7785
