The conversation between human and AI assistant.
[|Human|] From the passage note down the valuation of NFT trade for the year 2020 and 2021. List the results in format âYear: Valueâ.
[|AI|] 2020: $82million
2021: $17billion
[|Human|] 
From the passage note down the valuation of NFT trade for the year 2020 and 2021. List the results in format âYear: Valueâ.