Some of the other ways you can get points are:
Passing tiles, 1VP per Dwelling / 2 VP per Trading Post.
All your resources are converted into points.
There are some favor tiles that give you points at the end of a round iirc.
I might have missed one or two, it's been a while since I played.
thanks. I believe the passing and favor tile points would be reflected in my main score. you might be on to something in regards to resources though as those are dynamic during game and maybe they are adding them dynamically on this screen. I'll have to calculate what i have right now.