A high school graduation rate over 90 percent and two schools with straight A’s in achievement highlight the Warren County School System annual report card.Released earlier this month, the state report card shows the local graduation rate has climbed to 92.3 percent. That’s more than five points higher than the state average of 87.2 percent.“In the 20 years I’ve been involved with Warren County education, I think it’s the first time our graduation rate has been over 90 percent,” said Director of Schools Bobby Cox. “When you look at that and you look at Hickory Creek and Centertown, which got all A’s in achievement, we have some things to be proud of.