Quarter Sterling (millions) 2010-03-31 -16 2010-06-30 -2 2010-09-30 -18 2010-12-31 1 2011-03-31 2 2011-06-30 -29 2011-09-30 11 2011-12-31 30 2012-03-31 -151 2012-06-30 25 2012-09-30 -1 2012-12-31 33 2013-03-31 36 2013-06-30 -62 2013-09-30 -55 2013-12-31 16 2014-03-31 4 2014-06-30 6 2014-09-30 20 2014-12-31 60 2015-03-31 -60 2015-06-30 3 2015-09-30 -8 2015-12-31 -36 2016-03-31 58 2016-06-30 61 2016-09-30 65 2016-12-31 -73 2017-03-31 -90 2017-06-30 13 2017-09-30 -56 2017-12-31 83 2018-03-31 -44 2018-06-30 -26 2018-09-30 8 2018-12-31 -4 2019-03-31 20 2019-06-30 29 2019-09-30 62 2019-12-31 -8 2020-03-31 117 2020-06-30 116 2020-09-30 -45 2020-12-31 -5 2021-03-31 -56 2021-06-30 -35 2021-09-30 -77 2021-12-31 -56 2022-03-31 -40 2022-06-30 -60 2022-09-30 -41 2022-12-31 19 2023-03-31 105 2023-06-30 -12 2023-09-30 -13 2023-12-31 -2