Quarter Sterling (millions) 2004-03-31 1238 2004-06-30 1406 2004-09-30 1407 2004-12-31 1493 2005-03-31 1621 2005-06-30 1886 2005-09-30 2266 2005-12-31 2280 2006-03-31 2304 2006-06-30 2830 2006-09-30 2890 2006-12-31 3240 2007-03-31 3522 2007-06-30 4260 2007-09-30 4598 2007-12-31 4541 2008-03-31 4900 2008-06-30 4367 2008-09-30 3962 2008-12-31 3871 2009-03-31 1804 2009-06-30 864 2009-09-30 500 2009-12-31 399 2010-03-31 365 2010-06-30 412 2010-09-30 402 2010-12-31 466 2011-03-31 463 2011-06-30 622 2011-09-30 552 2011-12-31 495 2012-03-31 324 2012-06-30 294 2012-09-30 277 2012-12-31 260 2013-03-31 234 2013-06-30 255 2013-09-30 295 2013-12-31 253 2014-03-31 196 2014-06-30 222 2014-09-30 200 2014-12-31 219 2015-03-31 247 2015-06-30 271 2015-09-30 238 2015-12-31 231 2016-03-31 268 2016-06-30 296 2016-09-30 320 2016-12-31 279 2017-03-31 315 2017-06-30 333 2017-09-30 323 2017-12-31 468 2018-03-31 444 2018-06-30 505 2018-09-30 474 2018-12-31 531