XYZ Company, Annual Data 
Based on the information given in the table above, what is the average forecast error?
Definitions:
Dorothea Dix
An American activist who significantly improved the care and treatment of the mentally ill through tireless advocacy and the establishment of numerous psychiatric hospitals in the 19th century.
Deinstitutionalization
The process of replacing long-stay psychiatric hospitals with less isolated community mental health services for those diagnosed with a mental disorder.
Misery
a state of great distress or discomfort of mind or body.
Clinical Psychologists
Professionals specializing in diagnosing and treating mental, emotional, and behavioral disorders through psychological techniques.
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