Quarter Sterling (millions) 2004-03-31 96.5 2004-06-30 95.7 2004-09-30 94.3 2004-12-31 95.7 2005-03-31 96 2005-06-30 93.5 2005-09-30 93 2005-12-31 94.8 2006-03-31 95.2 2006-06-30 95.3 2006-09-30 94.7 2006-12-31 94.2 2007-03-31 94.2 2007-06-30 92.7 2007-09-30 92.5 2007-12-31 93.1 2008-03-31 95.8 2008-06-30 94.2 2008-09-30 89.8 2008-12-31 89.1 2009-03-31 82 2009-06-30 73.2 2009-09-30 62.6 2009-12-31 49.4 2010-03-31 49 2010-06-30 55 2010-09-30 46.3 2010-12-31 42.1 2011-03-31 48.5 2011-06-30 38.2 2011-09-30 33.3 2011-12-31 26.7 2012-03-31 34.6 2012-06-30 35.4 2012-09-30 40 2012-12-31 48.2 2013-03-31 40.5 2013-06-30 42.8 2013-09-30 45.1 2013-12-31 50.2 2014-03-31 58.5 2014-06-30 41.9 2014-09-30 56.6 2014-12-31 58.8 2015-03-31 55.1 2015-06-30 38.2 2015-09-30 50.9 2015-12-31 54.5 2016-03-31 58.1 2016-06-30 38.5 2016-09-30 49.1 2016-12-31 60.9 2017-03-31 66.2 2017-06-30 55.3 2017-09-30 52.6 2017-12-31 65.9 2018-03-31 70.6 2018-06-30 56.3 2018-09-30 61.2 2018-12-31 69.8 2019-03-31 59.2 2019-06-30 50 2019-09-30 60.7 2019-12-31 64.5 2020-03-31 64.9 2020-06-30 74 2020-09-30 69.8 2020-12-31 66 2021-03-31 64.8 2021-06-30 54.4 2021-09-30 60.6 2021-12-31 72.2 2022-03-31 61.3 2022-06-30 61.4 2022-09-30 67.1 2022-12-31 62.8 2023-03-31 65.6 2023-06-30 63.3 2023-09-30 77.3 2023-12-31 78.6