Quarterly Sterling
1997-09-30 11458
1997-12-31 11905
1998-03-31 12036
1998-06-30 12438
1998-09-30 12688
1998-12-31 12603
1999-03-31 12764
1999-06-30 12945
1999-09-30 12867
1999-12-31 13664
2000-03-31 13037
2000-06-30 13219
2000-09-30 12954
2000-12-31 12263
2001-03-31 12733
2001-06-30 12490
2001-09-30 12484
2001-12-31 11989
2002-03-31 12126
2002-06-30 12137
2002-09-30 11991
2002-12-31 12424
2003-03-31 11656
2003-06-30 11119
2003-09-30 10619
2003-12-31 11144
2004-03-31 11960
2004-06-30 11562
2004-09-30 13150
2004-12-31 12329
2005-03-31 12845
2005-06-30 12386
2005-09-30 12616
2005-12-31 12315
2006-03-31 13770
2006-06-30 13335
2006-09-30 13386
2006-12-31 13960
2007-03-31 14574
2007-06-30 14161
2007-09-30 13644
2007-12-31 12932
2008-03-31 13701
2008-06-30 13969
2008-09-30 13878
2008-12-31 12741
2009-03-31 12126
2009-06-30 11600
2009-09-30 11456
2009-12-31 14217
2010-03-31 14271
2010-06-30 14120
2010-09-30 14193
2010-12-31 13637
2011-03-31 13690
2011-06-30 13527
2011-09-30 13347
2011-12-31 12965
2012-03-31 13328
2012-06-30 12723
2012-09-30 13031
2012-12-31 12125
2013-03-31 12746
2013-06-30 14012
2013-09-30 12037
2013-12-31 11726
2014-03-31 12314
2014-06-30 12910
2014-09-30 12974
2014-12-31 13062
2015-03-31 13808
2015-06-30 14577
2015-09-30 15381
2015-12-31 15563
2016-03-31 16954
2016-06-30 18244
2016-09-30 17345
2016-12-31 16973
2017-03-31 18365
2017-06-30 18587
2017-09-30 18263
2017-12-31 17727
2018-03-31 17663
2018-06-30 17642
2018-09-30 17253
2018-12-31 17583
2019-03-31 17661
2019-06-30 14111
2019-09-30 14131
2019-12-31 14048
2020-03-31 13476
2020-06-30 15202
2020-09-30 13793
2020-12-31 14103
2021-03-31 13962
2021-06-30 13268
2021-09-30 12156
2021-12-31 12165
2022-03-31 12512
2022-06-30 12013
2022-09-30 12507
2022-12-31 12812
2023-03-31 12927
2023-06-30 12260
2023-09-30 11660
2023-12-31 11623