Year Sterling (millions) 1997-12-31 23673 1998-12-31 27821 1999-12-31 20163 2000-12-31 21279 2001-12-31 18969 2002-12-31 19434 2003-12-31 18129 2004-12-31 19561 2005-12-31 22397 2006-12-31 32639 2007-12-31 42078 2008-12-31 60171 2009-12-31 36303