Excel 2003 How can I shift values from adjacent cells over to an adjacent column

I have 3 columns. First is months listed 2012-01 to 2012-06 (repeated). The 2nd has a number of notes for each month. The 3rd has the number of notes for the new month June. How can I move values from the June column over to the 2nd column so my report is up to date. I attached a sheet below to help see the problem. Thank you very much in advance!