Quarter	Sterling (millions)
1997-12-31	-186
1998-03-31	255
1998-06-30	233
1998-09-30	370
1998-12-31	-302
1999-03-31	65
1999-06-30	233
1999-09-30	376
1999-12-31	-208
2000-03-31	41
2000-06-30	230
2000-09-30	206
2000-12-31	-232
2001-03-31	-12
2001-06-30	-56
2001-09-30	197
2001-12-31	-313
2002-03-31	36
2002-06-30	380
2002-09-30	222
2002-12-31	-300
2003-03-31	168
2003-06-30	404
2003-09-30	112
2003-12-31	-456
2004-03-31	229
2004-06-30	235
2004-09-30	286
2004-12-31	-338
2005-03-31	271
2005-06-30	208
2005-09-30	358
2005-12-31	204
2006-03-31	103
2006-06-30	-160
2006-09-30	232
2006-12-31	-18
2007-03-31	-41
2007-06-30	319
2007-09-30	390
2007-12-31	-238
2008-03-31	36
2008-06-30	512
2008-09-30	446
2008-12-31	-494
2009-03-31	272
2009-06-30	450
2009-09-30	388
2009-12-31	-560
2010-03-31	385
2010-06-30	386
2010-09-30	305
2010-12-31	-395
2011-03-31	186
2011-06-30	350
2011-09-30	283
2011-12-31	-292
2012-03-31	353
2012-06-30	454
2012-09-30	507
2012-12-31	-83
2013-03-31	505
2013-06-30	529
2013-09-30	538
2013-12-31	-340
2014-03-31	425
2014-06-30	714
2014-09-30	493
2014-12-31	-118
2015-03-31	437
2015-06-30	666
2015-09-30	568
2015-12-31	336
2016-03-31	-4
2016-06-30	313
2016-09-30	338
2016-12-31	-354
2017-03-31	353
2017-06-30	424
2017-09-30	49
2017-12-31	-307
2018-03-31	231
2018-06-30	333
2018-09-30	291
2018-12-31	-275
2019-03-31	203
2019-06-30	269
2019-09-30	131
2019-12-31	-573
2020-03-31	137
2020-06-30	582
2020-09-30	343
2020-12-31	-369
2021-03-31	293
2021-06-30	213
2021-09-30	-11
2021-12-31	-495
2022-03-31	60
2022-06-30	157
2022-09-30	-302
2022-12-31	-599
2023-03-31	32
2023-06-30	76
2023-09-30	-232
2023-12-31	-227