Quarter Sterling (millions) 2010-03-31 -10 2010-06-30 -79 2010-09-30 -13 2010-12-31 -36 2011-03-31 -37 2011-06-30 -2 2011-09-30 7 2011-12-31 -51 2012-03-31 -6 2012-06-30 -10 2012-09-30 -14 2012-12-31 -2 2013-03-31 -12 2013-06-30 -5 2013-09-30 -2 2013-12-31 4 2014-03-31 -5 2014-06-30 -2 2014-09-30 14 2014-12-31 2 2015-03-31 3 2015-06-30 4 2015-09-30 0 2015-12-31 1 2016-03-31 -4 2016-06-30 4 2016-09-30 -4 2016-12-31 8 2017-03-31 71 2017-06-30 -8 2017-09-30 -74 2017-12-31 9 2018-03-31 11 2018-06-30 0 2018-09-30 -30 2018-12-31 5 2019-03-31 3 2019-06-30 5 2019-09-30 -3 2019-12-31 -3 2020-03-31 1 2020-06-30 -4 2020-09-30 1 2020-12-31 0 2021-03-31 1 2021-06-30 -2 2021-09-30 -5 2021-12-31 -12 2022-03-31 0 2022-06-30 -1 2022-09-30 -3 2022-12-31 -2 2023-03-31 2 2023-06-30 -2 2023-09-30 95 2023-12-31 0