Other interesting data on the 2015 report cards:• Locally, school districts received less As and more Bs. Statewide there was little change. • Grades given for four-year graduation rates fluctuated far less than those for student performance.• No school district in Ohio improved a letter grade on the performance index, a measure of how the entire student body did on all state tests.• In the five-county area (Summit, Stark, Portage, Medina and Wayne), no As were given for performance index, though Aurora, Jackson and Hudson had received As the year before.