MADISON, Wis. — The top 0.5 percent of income earners in Wisconsin paid more than a fifth of the state’s income taxes in 2012.

Those 15,200 taxpayers paid $1.435 billion in income taxes, an average of $94,400 each, which is more than the annual incomes of 80 percent of the tax filers in Wisconsin, according to a new analysis from the Wisconsin Taxpayers Alliance.

Wisconsin’s “progressive” income tax structure means the wealthiest few carry the burden of government for the rest of the state. The top 0.5 percent of income earners made 14.7 percent of the state’s income, but paid nearly 21 percent of all state income taxes. And Wisconsin’s tax structure until 2013 has been among the most progressive in the country.