Quarter	Sterling (millions)
1997-12-31	0
1998-03-31	1010
1998-06-30	532
1998-09-30	480
1998-12-31	221
1999-03-31	456
1999-06-30	-66
1999-09-30	-152
1999-12-31	352
2000-03-31	-91
2000-06-30	230
2000-09-30	26
2000-12-31	120
2001-03-31	161
2001-06-30	85
2001-09-30	984
2001-12-31	196
2002-03-31	340
2002-06-30	208
2002-09-30	429
2002-12-31	-67
2003-03-31	63
2003-06-30	185
2003-09-30	-6
2003-12-31	426
2004-03-31	288
2004-06-30	-226
2004-09-30	202
2004-12-31	196
2005-03-31	-106
2005-06-30	-459
2005-09-30	-680
2005-12-31	-291
2006-03-31	-72
2006-06-30	177
2006-09-30	235
2006-12-31	-71
2007-03-31	1035
2007-06-30	841
2007-09-30	-452
2007-12-31	600
2008-03-31	-21
2008-06-30	163
2008-09-30	-1137
2008-12-31	-1063
2009-03-31	-241
2009-06-30	-437
2009-09-30	-565
2009-12-31	-2192
2010-03-31	-239
2010-06-30	-1150
2010-09-30	-364
2010-12-31	-68
2011-03-31	-147
2011-06-30	673
2011-09-30	-246
2011-12-31	-533
2012-03-31	-515
2012-06-30	-147
2012-09-30	-120
2012-12-31	-19
2013-03-31	752
2013-06-30	-310
2013-09-30	-65
2013-12-31	-85
2014-03-31	56
2014-06-30	560
2014-09-30	-444
2014-12-31	-308
2015-03-31	461
2015-06-30	-44
2015-09-30	-492
2015-12-31	93
2016-03-31	243
2016-06-30	131
2016-09-30	-215
2016-12-31	486
2017-03-31	-375
2017-06-30	84
2017-09-30	-570
2017-12-31	-576
2018-03-31	-17
2018-06-30	-265
2018-09-30	-766
2018-12-31	-446
2019-03-31	303
2019-06-30	-119
2019-09-30	375
2019-12-31	75
2020-03-31	10
2020-06-30	96
2020-09-30	-284
2020-12-31	307