Hello.
I have a problem with my Macbook. Although in the Applications folder there are 14,96 GB of Apps, when I check my storage (on the "Information about this Mac" menu) it shows that the Application section has a volume of 103 GB, as you can see in the attached screenshot.

I'm wondering how it's possible that I have 89 GB in the Application section which are not Apps. Is it possible that those 89 GB belong only to the OS?
Thank you so much.
MacBook (13-inch Mid 2010), OS X Yosemite (10.10.1)