In 2012, Reading School District declined to "Corrective Action Level II 6th year" Adequate Yearly Progress (AYP) due to chronic low student achievement. In 2011, 94 percent of the 500 Pennsylvania public school districts achieved the No Child Left Behind Act progress level of 72% of students reading on grade level and 67% of students demonstrating on-grade level math. In 2011, 46.9 percent of Pennsylvania school districts achieved Adequate Yearly Progress (AYP) based on student performance. An additional 37.8 percent of Pennsylvania public school districts made AYP based on a calculated method called "safe harbor", 8.2 percent on the growth model and 0.8 percent on a two-year average performance.