Quarter	Sterling (millions)
2010-03-31	0
2010-06-30	0
2010-09-30	9
2010-12-31	7
2011-03-31	3
2011-06-30	-19
2011-09-30	63
2011-12-31	-1
2012-03-31	171
2012-06-30	-86
2012-09-30	-4
2012-12-31	24
2013-03-31	-55
2013-06-30	-113
2013-09-30	1
2013-12-31	62
2014-03-31	25
2014-06-30	-17
2014-09-30	-50
2014-12-31	147
2015-03-31	9
2015-06-30	12
2015-09-30	135
2015-12-31	-3
2016-03-31	84
2016-06-30	182
2016-09-30	-107
2016-12-31	-255
2017-03-31	15
2017-06-30	7
2017-09-30	-110
2017-12-31	-115
2018-03-31	93
2018-06-30	-139
2018-09-30	-71
2018-12-31	2
2019-03-31	-42
2019-06-30	-48
2019-09-30	-12
2019-12-31	-18
2020-03-31	0
2020-06-30	7
2020-09-30	0
2020-12-31	0
2021-03-31	7
2021-06-30	0
2021-09-30	-7
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0
2023-12-31	0