Only 17 Florida-based commercial banks are rated "zero star," or the weakest on a 0-5 scale of financial health, a sign that the state's banking industry continues to strengthen from the darker days of the recession. Bauer Financial, which ranks a bank's health by star ratings every quarter, reported the lowest number of zero-star banks in years based on just released June 30 data. At the peak of the financial crisis and recession in 2009-2011, as many as 50 Florida banks were rated zero stars. Many of those failed or were sold off to stronger institutions. A very few managed to recover on their own. None of the 17 current zero-star banks are based in the Tampa Bay metro market.