What is the total supply of RPL?

Could you please elaborate on the total supply of RPL? I'm curious to understand the specifics behind its issuance and whether there's a fixed or variable cap. Understanding the total supply is crucial in assessing the potential impact on market value and liquidity. Is the supply predetermined or subject to change over time? Additionally, how does the supply mechanism work and are there any mechanisms that can affect the overall supply? I'd appreciate a concise yet comprehensive overview of RPL's total supply.