Quarter	Pound Sterling
1997-12-31	262276
1998-03-31	270989
1998-06-30	351284
1998-09-30	347672
1998-12-31	320663
1999-03-31	344805
1999-06-30	432042
1999-09-30	429162
1999-12-31	365887
2000-03-31	370931
2000-06-30	447589
2000-09-30	416604
2000-12-31	412740
2001-03-31	476143
2001-06-30	621177
2001-09-30	590883
2001-12-31	540972
2002-03-31	602408
2002-06-30	728138
2002-09-30	709906
2002-12-31	690634
2003-03-31	667324
2003-06-30	779480
2003-09-30	798195
2003-12-31	728674
2004-03-31	700214
2004-06-30	728880
2004-09-30	643288
2004-12-31	499850
2005-03-31	503607
2005-06-30	611771
2005-09-30	614223
2005-12-31	558301
2006-03-31	560158
2006-06-30	618389
2006-09-30	582310
2006-12-31	561203
2007-03-31	543171
2007-06-30	611105
2007-09-30	551851
2007-12-31	440572
2008-03-31	467023
2008-06-30	441609
2008-09-30	323750
2008-12-31	245257
2009-03-31	241623
2009-06-30	275315
2009-09-30	280905
2009-12-31	248581