How many tickets each general admission section of one event had open over time. General admission sections have quantities, not seats, so GET /v1/events/{eventId}/seat-history never shows them. sections summarizes each one: the count after its newest change, its peak and when, the sums of its observed increases and decreases, its first observation, its newest change and when it left the section list. Name one with section to add its exact points, oldest first, 1000 a page. The sums are observed changes: a return or a re-release of the same ticket adds again, so they are not a count of distinct tickets and do not say how many were bought, and a section's capacity is not a number put on sale. Nothing before coverage_start is known. Runs 15 to 20 minutes behind GET /v1/events/{eventId}/sections/live, which is the read for what is open now. Costs ONE UNIT a call or a page.