How to group identical fields

Hi,

I have a view that is displaying a field called 'Topic Reference'. The view shows all of the nodes created by a user and shows that 'Topic Reference' from each node. Can anyone explain how I remove identical fields? So for example if a user has created 5 nodes, 4 that have the same 'Topic Reference' my view returns this:

Apple
Banana
Banana
Banana
Banana

But how do I just show one record of each identical 'Topic Reference' field? So that I would get:

Apple
Banana

Even better if I could display like below which would be bonus points!

Apple - 1
Banana - 4

Thanks for any help. Hopefully someone can understand how to achieve this.