94b941a9_Statistics__Exchange_2013_Help__Description
[Parameter] Diagnostic [Required] Optional [Type] System.Management.Automation.SwitchParameter [Description] 
The Diagnostic switch specifies whether to return extremely detailed information in the results. Typically, you use this switch only at the request of Microsoft Customer Service and Support to troubleshoot problems.
Get-PublicFolderMoveRequestStatistics: Exchange 2013 Help