No. of unique list owners
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10000 
_
8000 
_
6000 
_
4000 
_
2000 
_
_
0
0
0
5288
5430
5588
5853
5978
6120
3650
3709
3815
3863
3927
3996
4093
4161
4221
4257
4284
4071
4130
4157
4213
4236
4289
4281
4364
4394
4445
4494
4544
4593
4644
4732
4794
4842
4905
4976
5007
5059
4956
5026
5141
5186
5257
5332
5423
5455
5393
5259
5344
5399
5489
5369
5388
5438
5503
5610
5689
5622
5692
5763
5841
5884
5972
6059
6120
6010
6055
6112
6214
6288
6374
6469
6523
6793
6851
6939
7010
7089
7178
7233
7338
7463
7600
7671
7736
7803
7864
7952
7969
7985
8056
8207
8294
8227
8230
8305
8098
8010
8097
8149
8224
8150
8128
8088
8144
8171
8237
8293
8376
8371
8426
8474
8576
8648
8574
8691
8794
8849
8803
8904
9016
9060
9136
9229
9191
8803
8715
8755
8882
8994
9091
9191
9292
9354
9396
 

2000
Dec

2001
Jan

2001
Feb

2001
Mar

2001
Apr

2001
May

2001
Jun

2001
Jul

2001
Aug

2001
Sep

2001
Oct

2001
Nov

2001
Dec

2002
Jan

2002
Feb

2002
Mar

2002
Apr

2002
May

2002
Jun

2002
Jul

2002
Aug

2002
Sep

2002
Oct

2002
Nov

2002
Dec

2003
Jan

2003
Feb

2003
Mar

2003
Apr

2003
May

2003
Jun

2003
Jul

2003
Aug

2003
Sep

2003
Oct

2003
Nov

2003
Dec

2004
Jan

2004
Feb

2004
Mar

2004
Apr

2004
May

2004
Jun

2004
Jul

2004
Aug

2004
Sep

2004
Oct

2004
Nov

2004
Dec

2005
Jan

2005
Feb

2005
Mar

2005
Apr

2005
May

2005
Jun

2005
Jul

2005
Aug

2005
Sep

2005
Oct

2005
Nov

2005
Dec

2006
Jan

2006
Feb

2006
Mar

2006
Apr

2006
May

2006
Jun

2006
Jul

2006
Aug

2006
Sep

2006
Oct

2006
Nov

2006
Dec

2007
Jan

2007
Feb

2007
Mar

2007
Apr

2007
May

2007
Jun

2007
Jul

2007
Aug

2007
Sep

2007
Oct

2007
Nov

2007
Dec

2008
Jan

2008
Feb

2008
Mar

2008
Apr

2008
May

2008
Jun

2008
Jul

2008
Aug

2008
Sep

2008
Oct

2008
Nov

2008
Dec

2009
Jan

2009
Feb

2009
Mar

2009
Apr

2009
May

2009
Jun

2009
Jul

2009
Aug

2009
Sep

2009
Oct

2009
Nov

2009
Dec

2010
Jan

2010
Feb

2010
Mar

2010
Apr

2010
May

2010
Jun

2010
Jul

2010
Aug

2010
Sep

2010
Oct

2010
Nov

2010
Dec

2011
Jan

2011
Feb

2011
Mar

2011
Apr

2011
May

2011
Jun

2011
Jul

2011
Aug

2011
Sep

2011
Oct

2011
Nov

2011
Dec

2012
Jan

2012
Feb

2012
Mar

2012
Apr

2012
May
 
Note: From September 2001, figures show the number of unique owners. Not available prior to March 2001