There's still an 18 in the Tall and some 6s and 8s.
In the regular only a 6 left.
In the Petite all sizes up to an 8.
Good ASOS tip though is to select the out of stock size you want and save it in your wishlist (the heart button). People always return things (like me in 3 days probably!) and it'll suddenly pop up as in stock right there in your wishlist. Asos get a LOT of returns.