Month	Sterling (millions)
2007-10-31	1073
2007-11-30	475
2007-12-31	423
2008-01-31	874
2008-02-29	1474
2008-03-31	1133
2008-04-30	1134
2008-05-31	1136
2008-06-30	1336
2008-07-31	850
2008-08-31	2007
2008-09-30	2040
2008-10-31	1709
2008-11-30	1963
2008-12-31	1954
2009-01-31	1188
2009-02-28	11882
2009-03-31	25016
2009-04-30	40088
2009-05-31	45998
2009-06-30	52090
2009-07-31	78390
2009-08-31	102862
2009-09-30	102659
2009-10-31	108199
2009-11-30	99315
2009-12-31	92853