Quarter Sterling (millions) 2010-03-31 -6666 2010-06-30 9838 2010-09-30 5262 2010-12-31 -6335 2011-03-31 -12694 2011-06-30 -1682 2011-09-30 3722 2011-12-31 -3606 2012-03-31 19516 2012-06-30 -6712 2012-09-30 -1552 2012-12-31 -11340 2013-03-31 -207 2013-06-30 2682 2013-09-30 -5069 2013-12-31 14797 2014-03-31 -5136 2014-06-30 -6319 2014-09-30 5065 2014-12-31 13751 2015-03-31 14891 2015-06-30 -12028 2015-09-30 -1260 2015-12-31 -2277 2016-03-31 -6498 2016-06-30 -10782 2016-09-30 4126 2016-12-31 810 2017-03-31 -18044 2017-06-30 -11312 2017-09-30 -1716 2017-12-31 -610 2018-03-31 18281 2018-06-30 5737 2018-09-30 -12836 2018-12-31 -5915 2019-03-31 -8784 2019-06-30 2429 2019-09-30 9733 2019-12-31 -7497