Quarter Sterling (millions) 2004-03-31 65.6 2004-06-30 65.6 2004-09-30 67.2 2004-12-31 68.6 2005-03-31 70.4 2005-06-30 73.7 2005-09-30 77.3 2005-12-31 75.2 2006-03-31 74.2 2006-06-30 75.5 2006-09-30 76.5 2006-12-31 77.3 2007-03-31 75.9 2007-06-30 77.8 2007-09-30 78.4 2007-12-31 77.8 2008-03-31 79.1 2008-06-30 79.7 2008-09-30 79.7 2008-12-31 80.7 2009-03-31 81.6 2009-06-30 80.3 2009-09-30 80.4 2009-12-31 80.1 2010-03-31 74.4 2010-06-30 73.1 2010-09-30 73.5 2010-12-31 73.4 2011-03-31 73.7 2011-06-30 73.6 2011-09-30 72.9 2011-12-31 72.9 2012-03-31 72.7 2012-06-30 72.3 2012-09-30 71.9 2012-12-31 71.5 2013-03-31 70 2013-06-30 68.4 2013-09-30 68 2013-12-31 68.1 2014-03-31 68.1 2014-06-30 66.6 2014-09-30 65.9 2014-12-31 65.4 2015-03-31 64.4 2015-06-30 64.8 2015-09-30 64.7 2015-12-31 64.5