 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.York Suburban School District achieved AYP status each year from 2005 to 2010, while in 2003 and 2004 the District was in Warning status due to lagging student academic achievement.In 2012, York Suburban School District's graduation rate was 89%.