Quarter	Sterling (millions)
2004-03-31	99.7
2004-06-30	99.5
2004-09-30	99.9
2004-12-31	99.5
2005-03-31	99.9
2005-06-30	99.9
2005-09-30	100
2005-12-31	99.9
2006-03-31	99.8
2006-06-30	100
2006-09-30	99.9
2006-12-31	99.8
2007-03-31	98.3
2007-06-30	99.9
2007-09-30	99.9
2007-12-31	99.8
2008-03-31	99.4
2008-06-30	99.8
2008-09-30	99.8
2008-12-31	99.7
2009-03-31	99.9
2009-06-30	99.5
2009-09-30	99.5
2009-12-31	99.6
2010-03-31	99.5
2010-06-30	99.8
2010-09-30	99.5
2010-12-31	99.6
2011-03-31	98.9
2011-06-30	98.9
2011-09-30	97.8
2011-12-31	97.2
2012-03-31	97.9
2012-06-30	98.8
2012-09-30	98.9
2012-12-31	99.1
2013-03-31	99.4
2013-06-30	99.4
2013-09-30	99.8
2013-12-31	99.6
2014-03-31	99.5
2014-06-30	99
2014-09-30	99.5
2014-12-31	99.4
2015-03-31	98.7
2015-06-30	98.4
2015-09-30	98.3
2015-12-31	98.2
2016-03-31	97.5
2016-06-30	99.1
2016-09-30	98.6
2016-12-31	98.7
2017-03-31	99
2017-06-30	99.1
2017-09-30	99.5
2017-12-31	98.8
2018-03-31	99
2018-06-30	99.3
2018-09-30	99.4
2018-12-31	99.6
2019-03-31	99.1
2019-06-30	98.6
2019-09-30	99.1
2019-12-31	99
2020-03-31	99
2020-06-30	99
2020-09-30	99.2
2020-12-31	99.8
2021-03-31	99.7
2021-06-30	99.9
2021-09-30	99.8
2021-12-31	99.9
2022-03-31	99.8
2022-06-30	98.8
2022-09-30	98.9
2022-12-31	99.2
2023-03-31	99.4
2023-06-30	99
2023-09-30	99
2023-12-31	98.5