How many floors are in each of the dungeons in Pokemon mystery dungeon 2 explorers of darkness?

The game Master...

There all differant but in chapters

1-5 there is about 7

6-11 there is about 15 max

12-15(Which is in the future,there is max 17

in chapters16-20 there is 20 max(in temporal tower middle)

after that there is supposedly 99 floors in the isle's

But for any dungeon you should stock up good