Your very important detailed records, and your tax returns would be a start.
It's one thing to make claims, it's another to verify the claims.
You've provided details of what you claim to have won each year, so your income tax forms would corroborate what you have already exposed.
When arcimede$ provided his income tax forms, he knew whether or not that information would verify his claims.
So do you...and that's why you won't provide the info.