Query: course_instances_usage

institution_short_name The short name of the institution (blank means all institutions).

total_start Start of the total time period (should be at least 6 months before the term start).

term_start Start of the term.

active_start Start of the active date range (the drop deadline in the term).

term_end End of the term.

total_end End of the total time period (should be at least 6 months past the term end, even if that's in the future).

minimum_term_ratio Minimum ratio of in-term to total submissions for a course instance to count as active.

minimum_student_count Minimum number of students for a course instance to count as active.