Insurers' experience in the state has been favorable overall in recent years, even though they paid out millions of dollars on claims stemming from the hailstorm that struck central Indiana in April 2007.
An insurer that covers one in four cars in the state, Illinois-based State Farm Automobile Insurance Co., has dropped rates 19 percent in the past four years, the newspaper reported.
Progressive Group of Insurance Cos., headquartered in Mayfield Village, Ohio, decreased its rates more than 10 percent in the four years.
Some industry experts say companies that drop their rates might be compensating for rates that were too high.
Still, other experts say Indiana has a low number of claims, and that the claims tend to be less expensive than in other states.