EARNINGS:6944.12%
This is more important for long term holder and this tells that we should hold.
I'm not sure if the figure you showed is accurate but I'm sure that investing with bitcoin int he early phase will give investors a fortune.
Therefore, we should encourage everyone to hold furthermore as long as they can.
I also believed in holding long term will be benefited you most if you have extended your patient upon holding your Bitcoin.
Anyway, I think Coinmarketcap has a feature of having
Historical Data of Bitcoin, probably this is also accurate information with the legit source.