Month	Sterling (millions)
2009-07-31	221
2009-08-31	-174
2009-09-30	-197
2009-10-31	198
2009-11-30	222
2009-12-31	185
2010-01-31	-504
2010-02-28	824
2010-03-31	-201
2010-04-30	231
2010-05-31	-89
2010-06-30	54
2010-07-31	127
2010-08-31	650
2010-09-30	83
2010-10-31	72
2010-11-30	220
2010-12-31	-253