Quarter	Percentage of GDP
2008-01-01	19.2
2008-04-01	19.5
2008-07-01	19.7
2008-10-01	20.1
2009-01-01	20.3
2009-04-01	21.1
2009-07-01	22.0
2009-10-01	22.5
2010-01-01	22.3
2010-04-01	23.0
2010-07-01	23.6
2010-10-01	24.1
2011-01-01	23.4
2011-04-01	23.9
2011-07-01	24.3
2011-10-01	24.7
2012-01-01	24.4
2012-04-01	24.9
2012-07-01	25.5
2012-10-01	26.1
2013-01-01	26.3
2013-04-01	27.2
2013-07-01	27.7
2013-10-01	28.1
2014-01-01	28.1
2014-04-01	28.4
2014-07-01	28.7
2014-10-01	29.1
2015-01-01	29.1
2015-04-01	29.7
2015-07-01	30.2
2015-10-01	30.7
2016-01-01	31.0
2016-04-01	31.8
2016-07-01	32.5
2016-10-01	33.0
2017-01-01	33.2
2017-04-01	33.8
2017-07-01	34.5
2017-10-01	34.8
2018-01-01	35.2