6 categories alphabetically

1 category I . 3,017 photos . 183 days . 2005-02-05 - 2014-07-26

2 category II . 14,742 photos . 210 days . 2004-08-01 - 2014-07-26

3 category III . 15,355 photos . 208 days . 2004-10-16 - 2014-07-26

4 category IV . 4,701 photos . 188 days . 2005-02-05 - 2014-07-26

7 housecats . 2,256 photos . 139 days . 2005-02-05 - 2014-07-13

9 others . 471 photos . 50 days . 2005-02-20 - 2014-07-13