After the Pretty Scary Update, the trade mechanics have changed: villagers can now have multiple trade offers after you increase your reputation with them.

This got me wondering how many trade offers a villager can have. I have done some brief research and watched some Pretty Scary Update video reviews, but haven't found anything on this topic.

I have tested it briefly in Creative Mode and so far I have got up to 9 trade offers from a single villager.

Have anyone already done conclusive tests for this in Survival Mode, or should I continue my experiments?