Low interest rates could benefit the City of Danbury with upcoming bonding. Danbury received a less than 1 percent interest rate on a $12 million, 10-year loan.  Finance Director David St Hilaire says they also got a .12 percent net interest costs on a one-year, $50 million loan.  He called the rates incredible and never seen this low.  St Hilaire plans to refund up to $27 million of existing bonds from 2011 and 2012, with the expectation that this will save the City at least $2 million.