Checking history of keyword rankings

[dynamic08]

When working on a new client how can we look in to the history of keyword rankings?

I would like the last 2 years but they have been tracked by me for only 1 month?

[MalcolmGibb]

I've not known this ability to be present in SEOmoz, but I have had experience with other tools and suites and one tool that would be able to do this and check historic rankings is Searchmetrics http://www.searchmetrics.com/en/.