Quarter Sterling (millions) 1997-12-31 2497 1998-03-31 3382 1998-06-30 4177 1998-09-30 4651 1998-12-31 5019 1999-03-31 4121 1999-06-30 4612 1999-09-30 3978 1999-12-31 2813 2000-03-31 4677 2000-06-30 5210 2000-09-30 4349 2000-12-31 4005 2001-03-31 4717 2001-06-30 4337 2001-09-30 4964 2001-12-31 5336 2002-03-31 4622 2002-06-30 4838 2002-09-30 4950 2002-12-31 4746 2003-03-31 4579 2003-06-30 4876 2003-09-30 5248 2003-12-31 5431 2004-03-31 4978 2004-06-30 6007 2004-09-30 6591 2004-12-31 6427 2005-03-31 4897 2005-06-30 4954 2005-09-30 4949 2005-12-31 6141 2006-03-31 6656 2006-06-30 7194 2006-09-30 8062 2006-12-31 6601 2007-03-31 8653 2007-06-30 7164 2007-09-30 10169 2007-12-31 9316 2008-03-31 9218 2008-06-30 9008 2008-09-30 7819 2008-12-31 8437 2009-03-31 9624 2009-06-30 9331 2009-09-30 6673 2009-12-31 7690 2010-03-31 9346 2010-06-30 6645 2010-09-30 7917 2010-12-31 9057 2011-03-31 9080 2011-06-30 8258 2011-09-30 9895 2011-12-31 10383 2012-03-31 9928 2012-06-30 8595 2012-09-30 10578 2012-12-31 9098 2013-03-31 9356 2013-06-30 10336 2013-09-30 8499 2013-12-31 9453 2014-03-31 7945 2014-06-30 7634 2014-09-30 9874 2014-12-31 6868 2015-03-31 8549 2015-06-30 7651 2015-09-30 11656 2015-12-31 10562 2016-03-31 12195 2016-06-30 11404 2016-09-30 13894 2016-12-31 11868 2017-03-31 12494 2017-06-30 13200 2017-09-30 14491 2017-12-31 11856 2018-03-31 12339 2018-06-30 13982 2018-09-30 10537 2018-12-31 10171