Quarter	Sterling (millions)
2004-03-31	32.9
2004-06-30	32.3
2004-09-30	32.1
2004-12-31	31.8
2005-03-31	31.9
2005-06-30	30.5
2005-09-30	29.6
2005-12-31	29.6
2006-03-31	29.8
2006-06-30	29.7
2006-09-30	29.9
2006-12-31	30.2
2007-03-31	29.9
2007-06-30	30.3
2007-09-30	30.6
2007-12-31	31.1
2008-03-31	32.2
2008-06-30	33
2008-09-30	33.9
2008-12-31	34.4
2009-03-31	35.6
2009-06-30	36.7
2009-09-30	37.5
2009-12-31	38.3
2010-03-31	39.1
2010-06-30	40.1
2010-09-30	41
2010-12-31	41.9
2011-03-31	36.8
2011-06-30	37
2011-09-30	36.6
2011-12-31	36.4
2012-03-31	36.2
2012-06-30	36.1
2012-09-30	35.4
2012-12-31	36.2
2013-03-31	35.8
2013-06-30	35.3
2013-09-30	34.8
2013-12-31	34.3
2014-03-31	33.6
2014-06-30	33.6
2014-09-30	33.3
2014-12-31	32.9
2015-03-31	32.4
2015-06-30	32.3
2015-09-30	32
2015-12-31	31.8
2016-03-31	24.5
2016-06-30	23.3
2016-09-30	22.1
2016-12-31	21.6
2017-03-31	21.3
2017-06-30	20.8
2017-09-30	20.2
2017-12-31	19
2018-03-31	18.6
2018-06-30	17.8
2018-09-30	16.8
2018-12-31	16.5
2019-03-31	16.5
2019-06-30	16
2019-09-30	15.6
2019-12-31	15.4
2020-03-31	14.8
2020-06-30	15.3
2020-09-30	16.1
2020-12-31	16.3
2021-03-31	16.6
2021-06-30	16.6
2021-09-30	16.8
2021-12-31	16.8
2022-03-31	16.5
2022-06-30	15.9
2022-09-30	15.4
2022-12-31	15.1
2023-03-31	14.9
2023-06-30	14.7
2023-09-30	14.2
2023-12-31	14.2