From the excellent Windfall: The Booming Business of Global Warming by McKenzie Funk - -
In 1992, when category 5 Hurricane Andrew struck Florida and Louisiana, insurance companies paid out more than $23 billion in claims. This was roughly $1.27 for every dollar of premium collected that year.
Fast forward to 2005 and Katrina, another category hurricane. Insurance companies paid out more than $40 billion. But this was only 71.5 cents per dollar collected. The industry still made $49 billion in profits.