In December 2012, the Dover Area School District administration reported that 511 pupils, or 13.5% of the district's pupils, received special education services. Forty-three percent of the students with Individual Education Plans (IEP) were identified as having a specific learning disability. In December 2010, the district administration reported that 560 pupils, or 14.3% of the district's pupils, received special education services. Fifty six percent of the students with Individual Education Plans were identified as having a specific learning disability. In December 2009, the district administration reported that 561 pupils, or 15.5% of the district's pupils, received special education services. Special education services in the Commonwealth of Pennsylvania are provided to students from ages three (3) years to 21 years old. In the 2010–2011 school year, the total student enrollment was more than 1.78 million students with approximately 275,000 students eligible for special education services. Among these students 18,959 were identified with mental retardation and 21,245 students with autism. The largest group of students are identified as Specific Learning Disabilities 126,026 students (46.9 percent) and Speech or Language Impairments with 43,542 students (16.2 percent).