The was published in 1952 by the american psychiatric association for the major classification of psychological disorders in the united states.

The Diagnostic and Statistical Manual of Mental Disorders or DSM is the name of the manual that was published in 1952 by the American Psychiatric Association for the major classification of psychological disorders in the United States. 
DSM is used by clinicians and researchers to identify and diagnose mental disorders.

I'm going to go with 1,982 feet because of all of the ice.                                               ps its this is not the answer go with d 6,500.