Don't worry about trying to assign points. For your LEED credit, review the information and base your evaluation on the information you find either through visual information (videos, images, site visits) and what you learn from the scholarly literature.
The King Library was certified at silver for existing buildings, operations & maintenance, so start with this information, as you compare it to the newer buildings for the credit you are examining.
Look at the Building Operations & Maintenance checklist for existing buildings to see all the categories and sub-categories used to rate the library.
Rating buildings for LEED certification is complex learning and you need to be certified to do this. The tab labeled Books on Green/Sustainable Buildings lists books to prepare for the certification exams to become a LEED certified examiner!
How many hours does the average American spend in their activities?
How many hours does the average student spend at school and work?
Are these statistics true for you?
How many hours do we spend in buildings at work, school, and home?
In the United States, buildings account for:
U.S. Environmental Protection Agency: Why Build Green.