I'm looking for a source to see stats for Cardano circulating supply chart since inception.
Is there another free source? I'm only looking for yearly change in supply. do not need every month data.
Use Messario.io that is one of biggest websites in cryptocurrency market but people usually use Coinmarketcap and Coingecko, then forget Messari.io.
They have basics to advance mode and with many filters for you.
With your question, this one is enough.
https://messari.io/project/cardano/charts/supply