Month	Sterling (millions)
2008-01-31	-29
2008-02-29	0
2008-03-31	39
2008-04-30	-75
2008-05-31	-30
2008-06-30	-23
2008-07-31	85
2008-08-31	-20
2008-09-30	-30
2008-10-31	67
2008-11-30	-60
2008-12-31	-4
2009-01-31	337
2009-02-28	-232
2009-03-31	176
2009-04-30	-322
2009-05-31	-38
2009-06-30	9
2009-07-31	-9
2009-08-31	-4
2009-09-30	-12
2009-10-31	14
2009-11-30	63
2009-12-31	-36