Quarter Sterling (millions) 2004-03-31 6.7 2004-06-30 3.8 2004-09-30 5 2004-12-31 7.2 2005-03-31 3.2 2005-06-30 3.9 2005-09-30 2.9 2005-12-31 3.1 2006-03-31 2.7 2006-06-30 4.5 2006-09-30 2.5 2006-12-31 3.5 2007-03-31 6.3 2007-06-30 5.3 2007-09-30 3.1 2007-12-31 2.4 2008-03-31 3.2 2008-06-30 2.6 2008-09-30 2.9 2008-12-31 5.3 2009-03-31 7.1 2009-06-30 7.6 2009-09-30 5.4 2009-12-31 5.5 2010-03-31 6 2010-06-30 6 2010-09-30 5.8 2010-12-31 4.8 2011-03-31 4.5 2011-06-30 5.4 2011-09-30 3.4 2011-12-31 4.9 2012-03-31 4.9 2012-06-30 4 2012-09-30 3.2 2012-12-31 5.2 2013-03-31 6.7 2013-06-30 6.3 2013-09-30 5.6 2013-12-31 7.6 2014-03-31 8 2014-06-30 8.7 2014-09-30 10.2 2014-12-31 10.3 2015-03-31 9.9 2015-06-30 10.3 2015-09-30 8.7 2015-12-31 10.7