Without knowing anything about it, I'm inclined to think that it's a combination of Finland's offshore oil drilling income of at least $5.23 billion and their tax rate of 51.6%:
Other more democratic socialism leaning countries redistribute income tax from the wealthy to fund the needs of the general population, but the US just gives that money to people who are already rich. Supposedly this raises all incomes, but incomes have not risen appreciably since the mid 1970s:
https://oec.world/en/profile/country/fin/
https://tradingeconomics.com/finland/personal-income-tax-rat...
The US has a lower top income tax rate of 37%:
https://www.debt.org/tax/brackets/
Other more democratic socialism leaning countries redistribute income tax from the wealthy to fund the needs of the general population, but the US just gives that money to people who are already rich. Supposedly this raises all incomes, but incomes have not risen appreciably since the mid 1970s:
https://economics.stackexchange.com/questions/15558/producti...