789 pages, each one the answer to a single question: what does this product need to be labelled legally in that market. Every figure is computed by the same engine that builds the label — none of it is written by hand, and none of it is guessed.
Reference amounts are fixed per food category in the United States and Canada, which is why those two markets have a page per food above. Everywhere else the panel is declared per 100 g, so what varies by market is the panel format, the languages and the instrument — each market’s rule-book page sets those out.