I am diagramming the following sentence:

Approximately three-fourths of the members of the Class of 1953 are still alive; however, each year we have one or two fewer survivors than we had the year before.

My perplexity stems from the subordinating conjunction, than. If I were to fill in the "incomplete comparison" for the diagram, than might be connected to an implied the,which modifies the implied survivors in the subordinate clause. It feels strange, though, because the and fewer are so different. Rationally, both words quantify, so the connection between fewer and the makes sense.

What are your thoughts? I may be able to post my in-process diagram, but I haven't tried this before. Therefore, I'm uncertain about my ability to do so.

Excited to hear what you all have to say,
Dea