Publishing site - How to clearly show which pages have a published version?

Hi,

I've a publishing site with a library where I stored pages.

I want to create a view where I can show clearly to the users:

* which pages are published and don't have a draft ongoing (version = x.0)

* which pages were never published (version = 0.y)

* which pages are published but ahve a draft ongoing (version = x.y)

How can I do that without to much coding? Or does a column already exists?

I've tried to work with calculated column based on the column "version" but it works only the 1st time when I create the calculated colulmn.

Thanks

Géraldine