Quarter Sterling (millions) 2004-03-31 83.8 2004-06-30 84.1 2004-09-30 84.5 2004-12-31 84.8 2005-03-31 84.8 2005-06-30 84.2 2005-09-30 83.2 2005-12-31 83.6 2006-03-31 85.4 2006-06-30 86 2006-09-30 86.5 2006-12-31 86.6 2007-03-31 86.4 2007-06-30 86.9 2007-09-30 88.8 2007-12-31 88.6 2008-03-31 87 2008-06-30 86.8 2008-09-30 86.7 2008-12-31 84.6 2009-03-31 82.4 2009-06-30 81.9 2009-09-30 81.3 2009-12-31 81 2010-03-31 82.1 2010-06-30 82.4 2010-09-30 83.1 2010-12-31 83.8 2011-03-31 87 2011-06-30 87.7 2011-09-30 87.7 2011-12-31 87.8 2012-03-31 87.9 2012-06-30 88.6 2012-09-30 89 2012-12-31 89.2 2013-03-31 92.6 2013-06-30 93.1 2013-09-30 93.6 2013-12-31 94.2 2014-03-31 94.7 2014-06-30 95.2 2014-09-30 95.5 2014-12-31 95.9 2015-03-31 96.1 2015-06-30 96.2 2015-09-30 96.3 2015-12-31 96.4