Phoenix housing bubble update

It's been a while since I gave an update on the number of homes for sale in Phoenix--the inventory has continued to balloon since the last report on March 10:

3/7/2006 36953
3/8/2006 37487
3/9/2006 37626
3/10/2006 37531
3/11/2006 38011
3/12/2006 38184
3/13/2006 38169
3/14/2006 38003
3/15/2006 38197
3/16/2006 38574
3/17/2006 38602
3/18/2006 39074
3/19/2006 38972
3/20/2006 38822
3/21/2006 39159
3/22/2006 38982
3/23/2006 39043
3/24/2006 39271
3/25/2006 39381
3/26/2006 39504
3/27/2006 39817
3/28/2006 39784
3/29/2006 39765
3/30/2006 39948
3/31/2006 40192
4/1/2006 40177
4/2/2006 40182
4/3/2006 40012
4/4/2006 40050
4/5/2006 40332
4/6/2006 40739
4/7/2006 40612
4/8/2006 41124
4/9/2006 41393
4/10/2006 41018
4/11/2006 42266
4/12/2006 42327
4/13/2006 42257
4/14/2006 42561
4/15/2006 42592
4/16/2006 42775
4/17/2006 42874
4/18/2006 42523
4/19/2006 42840
4/20/2006 43017
4/21/2006 43236
4/22/2006 43385
4/23/2006 43502
4/24/2006 43697
4/25/2006 43344
4/26/2006 43427
4/27/2006 44024
4/28/2006 43886
4/29/2006 44022
4/30/2006 44290
5/1/2006 44229
5/2/2006 43900
5/3/2006 43966
5/4/2006 44162
5/5/2006 44422
5/6/2006 44094
5/7/2006 44575
5/8/2006 44777
5/9/2006 44609
5/10/2006 44898
5/11/2006 45097
5/12/2006 45356
5/13/2006 45502
5/14/2006 45619
5/15/2006 45697
5/16/2006 45705
5/17/2006 45675
5/18/2006 46064
5/19/2006 46189
5/20/2006 46049
5/21/2006 46734
5/22/2006 46753
5/23/2006 46965
5/24/2006 46856
5/25/2006 47133
5/26/2006 47225
5/27/2006 47582
5/28/2006 47591
5/29/2006 47633
5/30/2006 47722
5/31/2006 47542
6/1/2006 47187
6/2/2006 47191
6/3/2006 47848
6/4/2006 47877
6/5/2006 47979
6/6/2006 48218
6/7/2006 48106
6/8/2006 48365
6/9/2006 48579
6/10/2006 48870
6/11/2006 48889
6/12/2006 49040
6/13/2006 49132
6/14/2006 49237
6/15/2006 49052
6/16/2006 49435

My first report, last October, showed an increase in inventory from 10,748 homes on July 20, 2005 to 19,254 on October 2. We're now at a 459% increase in inventory in the just under 11 months.

(But see Einzige's comment on what counts as evidence of a housing bubble...)