The newest versions can be found here.
Binaries for release 17.12 can be found here: http://sourceforge.net/projects/codeblocks/files/Binaries/17.12
Binaries for release 16.01 can be found here: http://sourceforge.net/projects/codeblocks/files/Binaries/16.01
Binaries for release 13.12 can be found here: http://sourceforge.net/projects/codeblocks/files/Binaries/13.12
Binaries for release 12.11 can be found here: http://sourceforge.net/projects/codeblocks/files/Binaries/12.11
Binaries for release 10.05 can be found here: http://sourceforge.net/projects/codeblocks/files/Binaries/10.05
Binaries for release 8.02 can be found here: http://sourceforge.net/projects/codeblocks/files/Binaries/8.02