Quarter Sterling (millions) 2008-03-31 519203 2008-06-30 511320 2008-09-30 502217 2008-12-31 493702 2009-03-31 482161 2009-06-30 477625 2009-09-30 482005 2009-12-31 482974 2010-03-31 487530 2010-06-30 485740 2010-09-30 484054 2010-12-31 486033 2011-03-31 480967 2011-06-30 471747 2011-09-30 476255 2011-12-31 483873 2012-03-31 484635 2012-06-30 484214 2012-09-30 493520 2012-12-31 511480 2013-03-31 526166 2013-06-30 537249 2013-09-30 550243 2013-12-31 567414 2014-03-31 578953 2014-06-30 589802 2014-09-30 590880 2014-12-31 604284 2015-03-31 602460 2015-06-30 606770 2015-09-30 612496 2015-12-31 628637 2016-03-31 640692 2016-06-30 656755 2016-09-30 670456 2016-12-31 684689 2017-03-31 686940 2017-06-30 695480 2017-09-30 705346 2017-12-31 716078 2018-03-31 717322 2018-06-30 724199 2018-09-30 731811 2018-12-31 743818 2019-03-31 745890 2019-06-30 753291 2019-09-30 761335 2019-12-31 773829