Quarter Sterling (millions) 1997-12-31 5990 1998-03-31 5291 1998-06-30 5996 1998-09-30 6088 1998-12-31 6579 1999-03-31 6005 1999-06-30 6510 1999-09-30 6291 1999-12-31 6236 2000-03-31 6018 2000-06-30 6084 2000-09-30 5823 2000-12-31 6059 2001-03-31 6122 2001-06-30 6722 2001-09-30 6669 2001-12-31 6687 2002-03-31 6889 2002-06-30 7134 2002-09-30 7170 2002-12-31 7567 2003-03-31 7459 2003-06-30 7688 2003-09-30 7950 2003-12-31 8228 2004-03-31 8300 2004-06-30 8610 2004-09-30 8920 2004-12-31 9278 2005-03-31 9367 2005-06-30 10044 2005-09-30 10183 2005-12-31 10282 2006-03-31 10198 2006-06-30 10725 2006-09-30 10646 2006-12-31 11332 2007-03-31 10916 2007-06-30 11887 2007-09-30 12273 2007-12-31 13254 2008-03-31 12815 2008-06-30 13745 2008-09-30 13756 2008-12-31 13154 2009-03-31 13058 2009-06-30 13670 2009-09-30 14482 2009-12-31 14443 2010-03-31 13900 2010-06-30 15067 2010-09-30 15425 2010-12-31 15209 2011-03-31 14496 2011-06-30 15674 2011-09-30 16226 2011-12-31 16049 2012-03-31 15314 2012-06-30 17553 2012-09-30 17101 2012-12-31 17126 2013-03-31 15754 2013-06-30 16327 2013-09-30 15688 2013-12-31 15907 2014-03-31 16174 2014-06-30 16845 2014-09-30 18074 2014-12-31 18666 2015-03-31 18694 2015-06-30 19222 2015-09-30 18981 2015-12-31 19538 2016-03-31 19470 2016-06-30 20177 2016-09-30 20363 2016-12-31 21246 2017-03-31 21162 2017-06-30 21805 2017-09-30 21446 2017-12-31 21692 2018-03-31 21502 2018-06-30 21982 2018-09-30 22136 2018-12-31 22284 2019-03-31 22605 2019-06-30 23444 2019-09-30 23659 2019-12-31 24190 2020-03-31 24713 2020-06-30 28479 2020-09-30 29509 2020-12-31 30866 2021-03-31 31672 2021-06-30 33092 2021-09-30 33400 2021-12-31 34690 2022-03-31 34842 2022-06-30 35537 2022-09-30 34725 2022-12-31 33875 2023-03-31 33402 2023-06-30 33498 2023-09-30 33037 2023-12-31 33260