Answer:
The tax structure appears to be progressive
Explanation:
A progressive tax structure is a tax structure in which the higher the income, the higher the tax liability, and the lower the income, the lower the tax liability.
This tax structure is the most common around the world because it is generally seen as fair. It is common sense for most people that higher incomes should pay more than lower incomes. However, there are economists that defend other tax structures with very strong arguments, so the debate is still ongoing.