Block % per strength threshold values

Does anyone know the exact strength requirements for every block % from 20-30% with relic +1?

Thanks in advance. (If it matters, I'm trying to minimize damage via gear optimization from the Titan hm fight)

Here's one of the best resources for FFXIV

http://valk.dancing-mad.com/?page_id=227

Thank you! This is exactly what I was looking for!

Keep in mind a lot of that data is out of date, but it still gives a good baseline to go off.