DDM Enhanced information

Hello

I have been looking at one of my customers ddm.nsf database to see what type of issues there may be within the environment. Lately I have been seeing the following enhanced event:

monthly activity for database - archive\a_jungerer.nsf on server is 105.

My question is, what does the number 105 represent? is it the hours\days\months that the database has not been used?

Any information would be greatly appreciated. Thank you.

Regards