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A letter from Nigel Gray

 

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AbstractFullPdf
Jul 2008363333
Aug 200821299
Sep 200833129
Oct 2008556
Nov 20081065
Dec 2008845
Jan 2009333
Feb 2009711
Mar 2009211
Apr 2009263
May 2009211
Jun 2009320
Jul 2009134
Aug 2009231
Sep 2009482
Oct 2009220
Nov 2009710
Dec 20091110
Jan 2010421
Feb 2010120
Mar 2010530
Apr 2010812
May 2010533
Jun 2010700
Jul 2010221
Aug 2010531
Sep 2010321
Oct 2010820
Nov 2010100
Dec 2010300
Jan 2011622
Feb 2011200
Mar 20111401
Apr 2011610
May 20111011
Jun 2011522
Jul 20111300
Aug 2011811
Sep 2011810
Oct 2011400
Nov 20111432
Dec 2011400
Jan 2012700
Feb 2012221
Mar 2012710
Apr 2012310
May 2012822
Jun 2012500
Jul 20121101
Aug 2012900
Sep 20121100
Oct 20121521
Dec 2012023
Feb 2013012
Mar 2013052
Apr 2013021
May 2013010
Jun 20131300
Jul 2013811
Aug 20131200
Sep 2013700
Oct 2013610
Nov 20131810
Dec 20131010
Jan 20141300
Feb 2014900
Mar 20141000
Apr 20141700
May 20142001
Jun 2014500
Jul 20142500
Aug 20141800
Sep 20141400
Oct 20141500
Nov 20142422
Dec 20141210
Jan 20151331
Feb 20152800
Mar 20152000
Apr 20151612
May 20152500
Jun 20152810
Jul 20151300
Aug 20152700
Sep 20151300
Oct 2015500
Nov 20151201
Dec 20153200
Jan 20161700
Feb 2016810
Mar 20163101
Apr 2016500
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Jun 2016900
Jul 20162000
Aug 2016800
Sep 2016200
Oct 20161001
Nov 20161201
Dec 2016700
Jan 2017510
Feb 2017400
Mar 20173520
Apr 20173511
May 20171000
Jun 20173021
Jul 20171400
Aug 20171200
Sep 20172300
Oct 20172300
Nov 20172600
Dec 20172000
Jan 20182900
Feb 20183310
Mar 20184930
Apr 20182600
May 20182600
Jun 20183600
Jul 20181711
Aug 20181800
Sep 20181000
Oct 20181510
Nov 20182500
Dec 20181600
Jan 20191800
Feb 20191100
Mar 20192710
Apr 20191400
May 20192600
Jun 20191300
Jul 20191100
Aug 20192710
Sep 20191901
Oct 20193410
Nov 20194100
Dec 20192300
Jan 20203910
Feb 20202000
Mar 20201400
Apr 20201800
May 20201410
Jun 2020800
Jul 2020800
Aug 2020600
Sep 20202400
Oct 20201300
Nov 2020800
Dec 2020712
Jan 20211400
Feb 20212000
Mar 20211400
Apr 20211800
Total2052202131