"Wilma caused the largest disruption to electrical service ever experienced in Florida. Media reports indicate up to 98 per cent of South Florida lost electrical service, and Florida Power and Light reported outages in 42 Florida counties. The amount of total insured damage compiled by the Property Claim Services of the Insurance Services Office, Inc., is $10.3 billion. Using a doubling of insured losses to obtain the total damage gives a current estimate of Wilma’s U.S. damage of $20.6 billion, making Wilma the third costliest hurricane in U.S. history, behind only Katrina and Andrew."
National Hurricane Center: Tropical Cyclone Report Hurricane Wilma : 15-25 October 2005