The Monthly Prospect Moves by Stage viewport provides the total number of Identified, Qualified, and Disqualified moves each month for the last six months.
This viewport tracks each time a prospect moved between stages, and lists each move separately. That means that a single prospect may show up in multiple categories within this viewport. It also means that this viewport does not reflect the current stage of a prospect.
Your system admin is responsible for mapping your institution's prospect stages to "identified", "qualified", or "disqualified" as appropriate. (They also can map stages to other values not displayed in this viewport.)