Quarter Sterling (millions) 2011-06-30 10 2011-09-30 -22 2011-12-31 2 2012-03-31 -33 2012-06-30 1 2012-09-30 -1 2012-12-31 36 2013-03-31 -12 2013-06-30 -22 2013-09-30 40 2013-12-31 12 2014-03-31 40 2014-06-30 22 2014-09-30 1 2014-12-31 167 2015-03-31 -40 2015-06-30 42 2015-09-30 -33 2015-12-31 48 2016-03-31 67 2016-06-30 -100 2016-09-30 -41 2016-12-31 40 2017-03-31 63 2017-06-30 -57 2017-09-30 -167 2017-12-31 34 2018-03-31 132 2018-06-30 -86 2018-09-30 12 2018-12-31 -85 2019-03-31 8 2019-06-30 -42 2019-09-30 618 2019-12-31 -643 2020-03-31 -13 2020-06-30 31 2020-09-30 -11 2020-12-31 242 2021-03-31 -251 2021-06-30 269 2021-09-30 -32 2021-12-31 -108 2022-03-31 5 2022-06-30 -50 2022-09-30 -53 2022-12-31 112 2023-03-31 191 2023-06-30 213 2023-09-30 118 2023-12-31 -6