At first it seemed obvious to me but now I'm beginning to question it seeing as how I can't find anything explicit in the RAW. This is hard to phrase but I'll do my best.
The question is regarding Ability Modifiers, Spells per day, BAB, fort. will and ref. saves, and experience totals.
Basically my question is, when looking at the tables after leveling up, are the numbers by the level the new total or what I'm adding to my current number. For example;
I level up from level 1 to 2 as a Barbarian. Is my BAB going from +1 to +2 or is it now +3 because it was 1 and now I'm adding 2?
I'm also wondering the same principle for experience. In a Medium paced game, the barbarian would reach level 2 at 2,000 and level 3 at 5,000. Does that mean that once he is level 2 he only needs 3,000 more or does he need the another 5,000 putting him at a 7,000 total?
Sorry if this seems ridiculous but the more I look at it the more it makes me wonder.