Does anyone have a reliable source for national hospital acquired infection rates?

I have looked just about everywhere I can think of and cannot find such a beast. I have found quotes anywhere from 0.74% to 2.0% We normally just track our own and sometimes those of other hospitals who are about our size. I have done this job for 16 years and now they want to see how we compare. There are so many factors in play here it is hard to compare. We are a not for profit rural hospital so to compare us to a facility which has a burn center, trauma ICU, ect is not really fair. But I digress... Any help/ideas would be wonderful.