Quarter	Percentage of GDP
1998-01-01	16.8
1998-04-01	17.7
1998-07-01	26.8
1998-10-01	30.1
1999-01-01	28.8
1999-04-01	24.9
1999-07-01	23.0
1999-10-01	22.8
2000-01-01	20.8
2000-04-01	19.7
2000-07-01	19.9
2000-10-01	20.9
2001-01-01	20.4
2001-04-01	21.1
2001-07-01	22.4
2001-10-01	23.6
2002-01-01	23.8
2002-04-01	24.4
2002-07-01	24.7
2002-10-01	25.2
2003-01-01	25.5
2003-04-01	26.1
2003-07-01	27.6
2003-10-01	27.9
2004-01-01	28.8
2004-04-01	29.0
2004-07-01	28.7
2004-10-01	30.2
2005-01-01	28.0
2005-04-01	28.2
2005-07-01	29.2
2005-10-01	31.0
2006-01-01	30.2
2006-04-01	30.3
2006-07-01	29.7
2006-10-01	31.7
2007-01-01	32.4
2007-04-01	37.3
2007-07-01	39.1
2007-10-01	39.0
2008-01-01	40.1
2008-04-01	39.8
2008-07-01	39.9
2008-10-01	42.8
2009-01-01	46.8
2009-04-01	45.1
2009-07-01	46.9
2009-10-01	47.2
2010-01-01	44.0
2010-04-01	43.6
2010-07-01	43.1
2010-10-01	41.9
2011-01-01	39.8
2011-04-01	39.4
2011-07-01	41.1
2011-10-01	41.3
2012-01-01	38.8
2012-04-01	41.0
2012-07-01	39.8
2012-10-01	39.8
2013-01-01	41.2
2013-04-01	42.4
2013-07-01	43.3
2013-10-01	43.1
2014-01-01	44.5
2014-04-01	43.8
2014-07-01	45.4
2014-10-01	53.9
2015-01-01	51.3
2015-04-01	50.1
2015-07-01	52.6
2015-10-01	57.9
2016-01-01	55.8
2016-04-01	52.9
2016-07-01	52.5
2016-10-01	51.5
2017-01-01	49.8
2017-04-01	50.3
2017-07-01	49.8
2017-10-01	49.1
2018-01-01	48.5