PARIS (Reuters) -Axa on Wednesday said its revenue in the first nine months of the year increased by 2% and estimated it would have to pay out about 400 million euros ($394 million) for damages caused by Hurricane Ian in the United States. The French insurer – Europe’s second-biggest after Germany’s Allianz – said its nine-month revenue rose 2% on a comparable basis to 78.4 billion euros from 76 billion in the year-earlier period. Property and casualty revenue was up 3% to 40.7 billion euros, while health revenue was up 14% to 13.1 billion. Axa said that Hurricane Ian, which devastated the coa…