Yeah that would be good, I believe this may be a summary of what you're talking about. In the USA it got that high according to their references which included the IRS. Though it says here the majority of the elite paid roughly 42% after deductions.
Further it compares total tax revenue paid by the elites then in the 1950s and more recently in the 2020s, but it doesn't consider what wealth distribution is like now. While the plutocrats pay roughly 5% more now, if you can believe it, watch this video to understand why I don't care about that.
This video explains why the tax rate they pay now should be higher. Essentially, they have a far far far far bigger slice of the overall pie, and there's a growing poverty line.
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https://city-countyobserver.com/did-people-really-pay-91-tax-rates-in-the-1950s-if-not-what-was-the-reality-compared-to-today-the-claim-that-the-top-1-of-earners-in-the-1950s-paid-a-91-tax-rate-is-based-on-the-statutory-top-marg/
https://youtu.be/QPKKQnijnsM?si=Wj1okY9GjbpQhdHo