Quarter Sterling (millions) 2010-03-31 430 2010-06-30 -284 2010-09-30 -35 2010-12-31 21 2011-03-31 16 2011-06-30 107 2011-09-30 313 2011-12-31 374 2012-03-31 -178 2012-06-30 -18 2012-09-30 -374 2012-12-31 128 2013-03-31 -61 2013-06-30 443 2013-09-30 53 2013-12-31 388 2014-03-31 236 2014-06-30 -124 2014-09-30 284 2014-12-31 -901 2015-03-31 -10 2015-06-30 245 2015-09-30 411 2015-12-31 75 2016-03-31 -475 2016-06-30 793 2016-09-30 194 2016-12-31 276 2017-03-31 31 2017-06-30 -600 2017-09-30 -329 2017-12-31 536 2018-03-31 -163 2018-06-30 636 2018-09-30 977 2018-12-31 -987 2019-03-31 -391 2019-06-30 -823 2019-09-30 -351 2019-12-31 243 2020-03-31 -733 2020-06-30 -115 2020-09-30 423 2020-12-31 388 2021-03-31 63 2021-06-30 129 2021-09-30 85 2021-12-31 53 2022-03-31 1178 2022-06-30 -201 2022-09-30 -707 2022-12-31 417 2023-03-31 -574 2023-06-30 91 2023-09-30 715 2023-12-31 -467