# Get some statistics on both the current held events and historic expired events
	fun stats: String
	do
		var entries = 0
		var instances = new HashSet[Bucketable[G]]
		var max = 0
		var min = 100000
		for bucket in buckets do
			var len = bucket.length
			entries += len
			instances.add_all bucket
			min = min.min(len)
			max = max.max(len)
		end
		var avg = entries.to_f / buckets.length.to_f

		return "{buckets.length} buckets; uniq/tot:{instances.length}/{entries}, avg:{avg.to_precision(1)}, min:{min}, max:{max}\n" +
			"history:{delays.sum}, avg:{delays.avg}, min:{delays[delays.min.as(not null)]}, max:{delays[delays.max.as(not null)]}"
	end