Quarter Sterling (millions) 2011-06-30 23 2011-09-30 -21 2011-12-31 80 2012-03-31 -70 2012-06-30 -1 2012-09-30 85 2012-12-31 -69 2013-03-31 -44 2013-06-30 6 2013-09-30 68 2013-12-31 -33 2014-03-31 3 2014-06-30 -17 2014-09-30 -16 2014-12-31 30 2015-03-31 -16 2015-06-30 -23 2015-09-30 20 2015-12-31 -51 2016-03-31 6 2016-06-30 14 2016-09-30 -74 2016-12-31 -4 2017-03-31 2 2017-06-30 -9 2017-09-30 -19 2017-12-31 -7 2018-03-31 21 2018-06-30 -13 2018-09-30 22 2018-12-31 -57 2019-03-31 12 2019-06-30 23 2019-09-30 10 2019-12-31 63 2020-03-31 -41 2020-06-30 0 2020-09-30 -51 2020-12-31 1 2021-03-31 3 2021-06-30 -10 2021-09-30 -6 2021-12-31 -21 2022-03-31 38 2022-06-30 38 2022-09-30 22 2022-12-31 31 2023-03-31 86 2023-06-30 64 2023-09-30 -63 2023-12-31 -39