Document Date and Description File Type File Size January 1, 2012 - Cumulative COLA Factors for 2012 Adobe Acrobat Document 13 KB January 1, 2011 - Cumulative COLA Factors for 2011 Adobe Acrobat Document 11 KB December 16, 2010 Explanation of COLA Increases for 2011 Adobe Acrobat Document 46 KB Documents contained on this page require the Adobe Reader to view.  If you do not have the reader, you may obtain it, free of charge, from the Adobe Site.