How to define lost BTC in the first place? if you say inactive address that never make any transaction at least 5 years, it's incorrect because the holder might still have the seed phrase, but choose to remain silent because he want to cash out when Bitcoin hit $1M for the example.
This is the list of address with a balance, good luck to guess how many addresses that the holders lost the seed phrase.
I'm looking for historical data like this:
2013: 1M BTC estimated to be lost.
2014: 2M BTC estimated to be lost.
2015: 3M BTC estimated to be lost.
2016: 4M BTC estimated to be lost.
2017: 5M BTC estimated to be lost.
2018: 6M BTC estimated to be lost.
2019: 7M BTC estimated to be lost.
2020: 8M BTC estimated to be lost.
2021: 9M BTC estimated to be lost.
2022: 10M BTC estimated to be lost.
2023: 11M BTC estimated to be lost.
Source: Apocollapse's shit.