Month Sterling (millions) 2007-10-31 1588 2007-11-30 2768 2007-12-31 3942 2008-01-31 3129 2008-02-29 2815 2008-03-31 4798 2008-04-30 4073 2008-05-31 4402 2008-06-30 4199 2008-07-31 4071 2008-08-31 4970 2008-09-30 4975 2008-10-31 4770 2008-11-30 4914 2008-12-31 5900 2009-01-31 7078 2009-02-28 13730 2009-03-31 20005 2009-04-30 21251 2009-05-31 22096 2009-06-30 23492 2009-07-31 25398 2009-08-31 29188 2009-09-30 35176 2009-10-31 29615 2009-11-30 32044 2009-12-31 27866