Quarter	Sterling (millions)
2004-03-31	26.6
2004-06-30	26.5
2004-09-30	26
2004-12-31	25
2005-03-31	24.3
2005-06-30	23.6
2005-09-30	23.2
2005-12-31	22
2006-03-31	21.1
2006-06-30	19.9
2006-09-30	19.2
2006-12-31	17.9
2007-03-31	16.6
2007-06-30	16.1
2007-09-30	16.5
2007-12-31	13
2008-03-31	11.9
2008-06-30	10.7
2008-09-30	9.8
2008-12-31	10.2
2009-03-31	10.1
2009-06-30	11.2
2009-09-30	13.5
2009-12-31	17.5
2010-03-31	26.5
2010-06-30	30.4
2010-09-30	35.4
2010-12-31	37.7
2011-03-31	39.4
2011-06-30	39.6
2011-09-30	39.8
2011-12-31	39.3
2012-03-31	38.5
2012-06-30	37.1
2012-09-30	36.5
2012-12-31	36.2
2013-03-31	36.8
2013-06-30	36.2
2013-09-30	37
2013-12-31	38.1
2014-03-31	39.3
2014-06-30	39.3
2014-09-30	40.2
2014-12-31	33.7
2015-03-31	32.4
2015-06-30	31.7
2015-09-30	30.7
2015-12-31	29.7
2016-03-31	29.7
2016-06-30	29.2
2016-09-30	29.8
2016-12-31	29.8
2017-03-31	29.6
2017-06-30	29.2
2017-09-30	29.4
2017-12-31	29.5
2018-03-31	29.4
2018-06-30	29.3
2018-09-30	30.5
2018-12-31	29.8
2019-03-31	29.2
2019-06-30	28.4
2019-09-30	28.5
2019-12-31	29
2020-03-31	29
2020-06-30	28.9
2020-09-30	28.8
2020-12-31	28.9
2021-03-31	28.6
2021-06-30	26.6
2021-09-30	25.6
2021-12-31	24.9
2022-03-31	31
2022-06-30	28.6
2022-09-30	24.6
2022-12-31	20.6
2023-03-31	16.1
2023-06-30	15.8
2023-09-30	13.1
2023-12-31	10.9