Quarter Sterling (millions) 1988-03-31 13915 1988-06-30 14013 1988-09-30 14396 1988-12-31 16103 1989-03-31 14875 1989-06-30 14738 1989-09-30 15021 1989-12-31 17071 1990-03-31 15165 1990-06-30 15676 1990-09-30 15696 1990-12-31 17524 1991-03-31 15918 1991-06-30 15905 1991-09-30 15918 1991-12-31 17156 1992-03-31 15534 1992-06-30 15990 1992-09-30 16223 1992-12-31 18089 1993-03-31 16447 1993-06-30 16919 1993-09-30 17120 1993-12-31 19378 1994-03-31 18031 1994-06-30 17939 1994-09-30 18184 1994-12-31 20448 1995-03-31 18385 1995-06-30 19000 1995-09-30 19286 1995-12-31 21717 1996-03-31 19596 1996-06-30 20309 1996-09-30 20765 1996-12-31 22407 1997-03-31 20853 1997-06-30 21605 1997-09-30 22040 1997-12-31 23715 1998-03-31 22108 1998-06-30 22778 1998-09-30 23048 1998-12-31 24573 1999-03-31 23199 1999-06-30 23959 1999-09-30 24511 1999-12-31 27232 2000-03-31 25130 2000-06-30 25896 2000-09-30 27053 2000-12-31 29412 2001-03-31 27028 2001-06-30 27390 2001-09-30 28236 2001-12-31 32226 2002-03-31 29122 2002-06-30 29946 2002-09-30 30571 2002-12-31 33639 2003-03-31 31284 2003-06-30 32327 2003-09-30 33196 2003-12-31 35524 2004-03-31 33367 2004-06-30 34404 2004-09-30 35121 2004-12-31 37212 2005-03-31 35232 2005-06-30 35722 2005-09-30 36543 2005-12-31 39329 2006-03-31 36988 2006-06-30 37792 2006-09-30 38476 2006-12-31 41366 2007-03-31 38541 2007-06-30 39571