Quarter	Sterling (millions)
1997-12-31	-173
1998-03-31	281
1998-06-30	213
1998-09-30	361
1998-12-31	-294
1999-03-31	82
1999-06-30	232
1999-09-30	347
1999-12-31	-193
2000-03-31	41
2000-06-30	224
2000-09-30	209
2000-12-31	-220
2001-03-31	-19
2001-06-30	-49
2001-09-30	192
2001-12-31	-313
2002-03-31	56
2002-06-30	372
2002-09-30	219
2002-12-31	-298
2003-03-31	164
2003-06-30	424
2003-09-30	95
2003-12-31	-443
2004-03-31	229
2004-06-30	238
2004-09-30	301
2004-12-31	-336
2005-03-31	276
2005-06-30	186
2005-09-30	373
2005-12-31	236
2006-03-31	141
2006-06-30	-134
2006-09-30	257
2006-12-31	6
2007-03-31	-18
2007-06-30	335
2007-09-30	412
2007-12-31	-214
2008-03-31	74
2008-06-30	527
2008-09-30	461
2008-12-31	-479
2009-03-31	296
2009-06-30	384
2009-09-30	384
2009-12-31	-558
2010-03-31	383
2010-06-30	336
2010-09-30	326
2010-12-31	-443
2011-03-31	209
2011-06-30	279
2011-09-30	275
2011-12-31	-305
2012-03-31	382
2012-06-30	419
2012-09-30	486
2012-12-31	-95
2013-03-31	482
2013-06-30	501
2013-09-30	533
2013-12-31	-314
2014-03-31	455
2014-06-30	715
2014-09-30	458
2014-12-31	-113
2015-03-31	499
2015-06-30	656
2015-09-30	582
2015-12-31	351
2016-03-31	-23
2016-06-30	309
2016-09-30	361
2016-12-31	-379
2017-03-31	360
2017-06-30	460
2017-09-30	63
2017-12-31	-338
2018-03-31	126
2018-06-30	329
2018-09-30	304
2018-12-31	-287
2019-03-31	179
2019-06-30	267
2019-09-30	157
2019-12-31	-577
2020-03-31	78
2020-06-30	587
2020-09-30	329
2020-12-31	-377
2021-03-31	284
2021-06-30	211
2021-09-30	-7
2021-12-31	-508
2022-03-31	58
2022-06-30	155
2022-09-30	-299
2022-12-31	-601
2023-03-31	27
2023-06-30	80
2023-09-30	-229
2023-12-31	-230