Quarter	Sterling (millions)
1997-12-31	-221
1998-03-31	282
1998-06-30	186
1998-09-30	345
1998-12-31	-283
1999-03-31	87
1999-06-30	241
1999-09-30	367
1999-12-31	-185
2000-03-31	53
2000-06-30	246
2000-09-30	195
2000-12-31	-192
2001-03-31	-18
2001-06-30	-39
2001-09-30	203
2001-12-31	-281
2002-03-31	12
2002-06-30	388
2002-09-30	211
2002-12-31	-297
2003-03-31	145
2003-06-30	434
2003-09-30	108
2003-12-31	-450
2004-03-31	191
2004-06-30	231
2004-09-30	303
2004-12-31	-350
2005-03-31	253
2005-06-30	183
2005-09-30	369
2005-12-31	250
2006-03-31	224
2006-06-30	-212
2006-09-30	285
2006-12-31	16
2007-03-31	-31
2007-06-30	334
2007-09-30	409
2007-12-31	-209
2008-03-31	86
2008-06-30	466
2008-09-30	465
2008-12-31	-482
2009-03-31	279
2009-06-30	394
2009-09-30	368
2009-12-31	-544
2010-03-31	373
2010-06-30	322
2010-09-30	319
2010-12-31	-446
2011-03-31	193
2011-06-30	256
2011-09-30	285
2011-12-31	-305
2012-03-31	375
2012-06-30	410
2012-09-30	500
2012-12-31	-91
2013-03-31	451
2013-06-30	492
2013-09-30	526
2013-12-31	-322
2014-03-31	455
2014-06-30	738
2014-09-30	460
2014-12-31	-123
2015-03-31	497
2015-06-30	651
2015-09-30	589
2015-12-31	337
2016-03-31	-1
2016-06-30	349
2016-09-30	349
2016-12-31	-352
2017-03-31	356
2017-06-30	449
2017-09-30	71
2017-12-31	-328
2018-03-31	122
2018-06-30	325
2018-09-30	353
2018-12-31	-273
2019-03-31	162
2019-06-30	236
2019-09-30	175
2019-12-31	-597
2020-03-31	81
2020-06-30	607
2020-09-30	307
2020-12-31	-363
2021-03-31	299
2021-06-30	216
2021-09-30	0
2021-12-31	-528
2022-03-31	48
2022-06-30	158
2022-09-30	-280
2022-12-31	-602
2023-03-31	12
2023-06-30	67
2023-09-30	-214
2023-12-31	-234