[Plugin: SEO Ultimate] 1/2 star ratings for Rich Snippets?

Is there a possibility that you could add half star values to the Rich Snippets module?

So instead of just

1
2
3
4
5

this:

1
1 1/2
2
2 1/2
3
3 1/2
4
4 1/2
5

Thanks

https://www.ads-software.com/extend/plugins/seo-ultimate/