What is the highest level in DAI?

Excuse me, could you please clarify something for me? I'm trying to understand the concept of DAI and I'm a bit confused about its highest level. Is there a specific metric or benchmark that determines the peak value of DAI? Could you explain what that might be and how it's determined? I'm interested in understanding the mechanisms that drive the value of DAI and how it fluctuates over time. Thank you for your time and assistance in this matter.