Quarter	Sterling
1997-09-30	241427
1997-12-31	243935
1998-03-31	252950
1998-06-30	245744
1998-09-30	250542
1998-12-31	227141
1999-03-31	235905
1999-06-30	234501
1999-09-30	235560
1999-12-31	231209
2000-03-31	268768
2000-06-30	271634
2000-09-30	266714
2000-12-31	278606
2001-03-31	312558
2001-06-30	296827
2001-09-30	296627
2001-12-31	311029
2002-03-31	315582
2002-06-30	329954
2002-09-30	321343
2002-12-31	323384
2003-03-31	338009
2003-06-30	343785
2003-09-30	361600
2003-12-31	384981
2004-03-31	406169
2004-06-30	408111
2004-09-30	425695
2004-12-31	438728
2005-03-31	439559
2005-06-30	449462
2005-09-30	455701
2005-12-31	473528
2006-03-31	529003
2006-06-30	532587
2006-09-30	529459
2006-12-31	547402
2007-03-31	676167
2007-06-30	695250
2007-09-30	719719
2007-12-31	719671
2008-03-31	791344
2008-06-30	765881
2008-09-30	794221
2008-12-31	881908
2009-03-31	877935
2009-06-30	735942
2009-09-30	738386
2009-12-31	738774
2010-03-31	732892
2010-06-30	691239
2010-09-30	714051
2010-12-31	691360
2011-03-31	683291
2011-06-30	675639
2011-09-30	637024
2011-12-31	583047
2012-03-31	609315
2012-06-30	609369
2012-09-30	604802
2012-12-31	600473
2013-03-31	622171
2013-06-30	608605
2013-09-30	577553
2013-12-31	545853
2014-03-31	484966
2014-06-30	443259
2014-09-30	430195
2014-12-31	408120
2015-03-31	422623
2015-06-30	411675
2015-09-30	426834
2015-12-31	406650
2016-03-31	408232
2016-06-30	427303
2016-09-30	427318
2016-12-31	413265
2017-03-31	413093
2017-06-30	407914
2017-09-30	402482
2017-12-31	397133
2018-03-31	410392
2018-06-30	428178
2018-09-30	430377
2018-12-31	421428
2019-03-31	435652
2019-06-30	447545
2019-09-30	453220
2019-12-31	449797
2020-03-31	485626
2020-06-30	488167
2020-09-30	472812
2020-12-31	476469
2021-03-31	463371
2021-06-30	478969
2021-09-30	487169
2021-12-31	478563
2022-03-31	495476
2022-06-30	494050
2022-09-30	513200
2022-12-31	480398
2023-03-31	477482
2023-06-30	503592
2023-09-30	516824
2023-12-31	545618