Public dataset statistics

Headline counters for the indicator dataset, read from the metrics snapshot the load-metrics job writes to Redis. Always 200: when the snapshot is missing or a field is absent, the counters are 0 and topCategories is empty — there is no error response. lastUpdated is the snapshot's own computedAt stamp (RFC 3339, written by the load-metrics job), null when no snapshot exists — never the response time, so a stale snapshot is visible as such. topCategories holds at most five entries.

No authentication required. Not metered.