Quarter Sterling (millions), Seasonally adjusted 1997-12-31 2650 1998-03-31 3175 1998-06-30 3916 1998-09-30 4277 1998-12-31 4459 1999-03-31 5179 1999-06-30 5631 1999-09-30 6133 1999-12-31 5242 2000-03-31 5658 2000-06-30 6388 2000-09-30 6825 2000-12-31 8228 2001-03-31 10843 2001-06-30 12280 2001-09-30 13272 2001-12-31 15884 2002-03-31 18419 2002-06-30 19371 2002-09-30 21485 2002-12-31 25900 2003-03-31 27373 2003-06-30 30340 2003-09-30 31368 2003-12-31 30559 2004-03-31 28779 2004-06-30 29579 2004-09-30 29964 2004-12-31 27042 2005-03-31 28462 2005-06-30 29864 2005-09-30 35644 2005-12-31 35305 2006-03-31 32914 2006-06-30 33899 2006-09-30 34704 2006-12-31 37453 2007-03-31 37812 2007-06-30 37559 2007-09-30 39429 2007-12-31 35589 2008-03-31 41817 2008-06-30 36867 2008-09-30 28039 2008-12-31 20184 2009-03-31 11968 2009-06-30 12161 2009-09-30 11485 2009-12-31 9528 2010-03-31 10275 2010-06-30 10515 2010-09-30 11279 2010-12-31 11788 2011-03-31 13116 2011-06-30 11310 2011-09-30 12820 2011-12-31 12706 2012-03-31 12098 2012-06-30 11621 2012-09-30 10828 2012-12-31 11327 2013-03-31 11716 2013-06-30 14176 2013-09-30 15942 2013-12-31 16176 2014-03-31 16307 2014-06-30 14597 2014-09-30 15441 2014-12-31 15382 2015-03-31 16353 2015-06-30 18628 2015-09-30 20503 2015-12-31 20964 2016-03-31 22539 2016-06-30 22993 2016-09-30 22087 2016-12-31 24038 2017-03-31 23567 2017-06-30 23313 2017-09-30 24488 2017-12-31 27065 2018-03-31 24499 2018-06-30 26452 2018-09-30 26189 2018-12-31 26036 2019-03-31 26370 2019-06-30 25006 2019-09-30 25943 2019-12-31 27354