Quarter	Sterling
1997-09-30	4997
1997-12-31	5116
1998-03-31	5122
1998-06-30	4942
1998-09-30	4676
1998-12-31	4647
1999-03-31	4496
1999-06-30	4493
1999-09-30	4758
1999-12-31	4970
2000-03-31	5290
2000-06-30	5729
2000-09-30	5885
2000-12-31	5770
2001-03-31	5775
2001-06-30	4970
2001-09-30	5194
2001-12-31	5142
2002-03-31	5395
2002-06-30	5897
2002-09-30	5380
2002-12-31	5769
2003-03-31	5885
2003-06-30	5905
2003-09-30	6046
2003-12-31	6560
2004-03-31	6740
2004-06-30	6759
2004-09-30	6281
2004-12-31	6370
2005-03-31	6723
2005-06-30	7245
2005-09-30	6948
2005-12-31	7281
2006-03-31	7269
2006-06-30	7340
2006-09-30	7653
2006-12-31	7925
2007-03-31	8429
2007-06-30	8508
2007-09-30	8875
2007-12-31	9403
2008-03-31	9340
2008-06-30	9331
2008-09-30	9544
2008-12-31	8966
2009-03-31	8755
2009-06-30	8564
2009-09-30	8576
2009-12-31	8782
2010-03-31	8475
2010-06-30	8325
2010-09-30	8351
2010-12-31	8054
2011-03-31	6486
2011-06-30	6169
2011-09-30	5877
2011-12-31	5598
2012-03-31	5303
2012-06-30	5046
2012-09-30	4905
2012-12-31	4845
2013-03-31	4845
2013-06-30	4779
2013-09-30	4691
2013-12-31	4240
2014-03-31	4248
2014-06-30	4143
2014-09-30	4084
2014-12-31	4204
2015-03-31	4149
2015-06-30	4719
2015-09-30	4591
2015-12-31	4530
2016-03-31	4662
2016-06-30	4735
2016-09-30	4771
2016-12-31	4745
2017-03-31	4710
2017-06-30	4817
2017-09-30	4700
2017-12-31	4460
2018-03-31	4270
2018-06-30	4234
2018-09-30	4301
2018-12-31	4674
2019-03-31	4448
2019-06-30	4467
2019-09-30	4301
2019-12-31	4394
2020-03-31	4542
2020-06-30	5639
2020-09-30	5917
2020-12-31	6358
2021-03-31	6607
2021-06-30	6407
2021-09-30	6328
2021-12-31	6378
2022-03-31	6302
2022-06-30	5907
2022-09-30	5692
2022-12-31	5387
2023-03-31	5241
2023-06-30	5062
2023-09-30	4905
2023-12-31	5045