Quarter	Sterling (millions)
2004-03-31	25
2004-06-30	25.4
2004-09-30	27.6
2004-12-31	29.6
2005-03-31	29.9
2005-06-30	31
2005-09-30	32.3
2005-12-31	35.6
2006-03-31	38.7
2006-06-30	41.2
2006-09-30	42.8
2006-12-31	43.6
2007-03-31	45.6
2007-06-30	47.9
2007-09-30	49.6
2007-12-31	47
2008-03-31	45.4
2008-06-30	44.1
2008-09-30	43.7
2008-12-31	43.9
2009-03-31	41
2009-06-30	39.7
2009-09-30	38
2009-12-31	36.3
2010-03-31	36.1
2010-06-30	34.7
2010-09-30	33.7
2010-12-31	32.9
2011-03-31	32.5
2011-06-30	31.7
2011-09-30	30.2
2011-12-31	29.3
2012-03-31	29.4
2012-06-30	29.5
2012-09-30	29
2012-12-31	29.1
2013-03-31	29.7
2013-06-30	30.3
2013-09-30	31.4
2013-12-31	33.4
2014-03-31	35.7
2014-06-30	38.2
2014-09-30	40
2014-12-31	42.1
2015-03-31	43.8
2015-06-30	45.5
2015-09-30	47.6
2015-12-31	49.2
2016-03-31	50.1
2016-06-30	51.8
2016-09-30	53
2016-12-31	54.2
2017-03-31	55.8
2017-06-30	57.6
2017-09-30	59.4
2017-12-31	61.4
2018-03-31	63.4
2018-06-30	65
2018-09-30	66.6
2018-12-31	68.4
2019-03-31	70.1
2019-06-30	71.3
2019-09-30	72.5
2019-12-31	73.7
2020-03-31	74.9
2020-06-30	75.6
2020-09-30	76.2
2020-12-31	77
2021-03-31	78.2
2021-06-30	79.4
2021-09-30	80.5
2021-12-31	81.5
2022-03-31	82.7
2022-06-30	84
2022-09-30	85.4
2022-12-31	86.9
2023-03-31	87.2
2023-06-30	87.2
2023-09-30	87.6
2023-12-31	87.6