Quarter	Sterling
2003-03-31	14220
2003-06-30	11471
2003-09-30	17982
2003-12-31	17864
2004-03-31	21980
2004-06-30	13895
2004-09-30	12051
2004-12-31	17539
2005-03-31	14638
2005-06-30	16781
2005-09-30	19154
2005-12-31	20194
2006-03-31	23583
2006-06-30	26106
2006-09-30	25134
2006-12-31	28002
2007-03-31	25150
2007-06-30	23218
2007-09-30	25825
2007-12-31	21328
2008-03-31	24441
2008-06-30	23343
2008-09-30	29095
2008-12-31	17042
2009-03-31	29301
2009-06-30	18437
2009-09-30	13418
2009-12-31	8732
2010-03-31	13783
2010-06-30	12645
2010-09-30	14026
2010-12-31	13708
2011-03-31	9920
2011-06-30	12022
2011-09-30	11623
2011-12-31	8338
2012-03-31	13687
2012-06-30	15789
2012-09-30	17449
2012-12-31	18388
2013-03-31	11142
2013-06-30	13376
2013-09-30	13590
2013-12-31	15580
2014-03-31	20708
2014-06-30	16439
2014-09-30	12765
2014-12-31	11645
2015-03-31	12097
2015-06-30	13562
2015-09-30	8377
2015-12-31	9515
2016-03-31	13585
2016-06-30	13550
2016-09-30	14112
2016-12-31	16608
2017-03-31	18401
2017-06-30	18213
2017-09-30	21981
2017-12-31	29657
2018-03-31	25075
2018-06-30	24135
2018-09-30	21508
2018-12-31	26810
2019-03-31	24048
2019-06-30	28037
2019-09-30	24204
2019-12-31	24526